A casting device for casting wind turbine main shafts

Abstract

This invention discloses a casting device for wind turbine main shaft casting, relating to the field of casting equipment technology. It includes a casting ladle, a support rod, a guide mechanism, an active mechanism, a telescopic rod, a driven mechanism, and a control panel. A rotating seat is located at the lower right end of the casting ladle, and a sliding seat is located in the middle of the ladle. The sliding seat has a long groove extending to the rotating seat. A sliding pin is located at the lower end of the support rod to engage with the long groove. An active mechanism for traveling along the guide mechanism is located at the upper end of the support rod. The guide mechanism is connected to the top of the workshop. The lower end of the telescopic rod is rotatably connected to the rotating seat, and a driven mechanism for traveling along the guide mechanism is located at the upper end of the telescopic rod. A control panel for controlling the movement of the active mechanism and the extension and retraction of the telescopic rod is located inside the workshop. This invention reduces the risk of workers being exposed to high-temperature radiation and splashed with molten iron, improving worker safety.

Description

Technical Field

[0001] This invention relates to the field of casting equipment technology, specifically a casting device for casting wind turbine main shafts. Background Technology

[0002] When casting the main shaft of a wind turbine, a casting ladle is required, such as... Figure 1 As shown, the existing casting ladle 1 is a cylindrical structure with an open top. A lifting frame 2 is provided on the outside of the casting ladle 1. A lifting ring 3 is provided on the upper part of the lifting frame 2. A handwheel 4 for driving the casting ladle 1 to rotate is provided on the lower part of the lifting frame 2.

[0003] When casting the main shaft of a wind turbine using a ladle, the ladle is first used to collect the molten iron from the smelting furnace. Then, a hoisting device (such as a gantry crane) is used to hook the lifting ring and transport the ladle to the casting station. Afterward, the worker turns the handwheel to tilt the ladle, allowing the molten iron to pour into the mold. During this pouring process, the worker must remain near the ladle to turn the handwheel as needed, gradually increasing the ladle's tilt to ensure the molten iron flows out completely.

[0004] Because workers need to stand near the ladle to adjust its tilt during the pouring of molten iron, the risk of them being exposed to high-temperature radiation and splashed by molten iron is increased, reducing their safety. Summary of the Invention

[0005] The present invention addresses the aforementioned shortcomings of the existing technology by providing a casting device for wind turbine main shaft casting. The present invention can reduce the risk of workers being exposed to high temperature radiation and splashed by molten iron, thereby improving the safety of workers.

[0006] To achieve the above objectives, the invention provides the following technical solution:

[0007] A casting device for wind turbine main shaft casting includes a casting ladle, a support rod, a guide mechanism, an active mechanism, a telescopic rod, a driven mechanism, and a control panel. A rotating seat is located at the lower right end of the casting ladle, and a sliding seat is located in the middle of the casting ladle. The sliding seat has a long groove extending to the rotating seat. A sliding pin is located at the lower end of the support rod to engage with the long groove. An active mechanism for traveling along the guide mechanism is located at the upper end of the support rod. The guide mechanism is connected to the top of the workshop. The lower end of the telescopic rod is rotatably connected to the rotating seat, and a driven mechanism for traveling along the guide mechanism is located at the upper end of the telescopic rod. A control panel for controlling the movement of the active mechanism and the extension and retraction of the telescopic rod is located inside the workshop.

[0008] Furthermore, the guiding mechanism includes a first guide rail and a second guide rail arranged side by side. The first guide rail has a first elongated hole, and a rack is provided on the wall of the first elongated hole. The second guide rail has a second elongated hole. The first guide rail is located below the second guide rail. Both the first and second guide rails are connected to the top of the workshop. The driving mechanism includes a gear located at the top of the support rod and a motor for driving the gear to rotate. The gear cooperates with the rack. The driven mechanism includes a roller located at the top of the telescopic rod. The roller cooperates with the second elongated hole.

[0009] Furthermore, both the first guide rail and the second guide rail are connected to the top of the workshop via mounting rods.

[0010] Furthermore, the control panel includes a base, the base is equipped with a control module, and the surface of the base is equipped with a travel switch, a return switch, a stop movement switch, a retraction switch, an extension switch, and a stop telescopic switch for electrical connection with the input terminal of the control module. The motor and the telescopic rod are both connected to the output terminal of the control module.

[0011] Furthermore, the middle part of the support rod and the middle part of the telescopic rod are connected by a connecting rod.

[0012] Furthermore, it also includes a backup mechanism, which includes a backup guide rail, a rotating shaft, a baffle, and an adjustment component. The backup guide rail is provided with a backup elongated hole and is tilted to the left. The lower end of the backup guide rail is connected to the second guide rail. The connection between the backup guide rail and the second guide rail is provided with a connecting hole for connecting the backup elongated hole and the second elongated hole. A rotating shaft is rotatably connected to the wall of the connecting hole, and a baffle is fixedly provided on the rotating shaft. An adjustment component is provided on the backup guide rail for adjusting the rotation state of the baffle. When the baffle is rotated downward to an inclined position, the backup elongated hole and the second elongated hole are connected. When the baffle is rotated to a horizontal position, the backup elongated hole is closed.

[0013] Furthermore, the adjustment assembly includes an adjustment bolt, and the spare guide rail is provided with an adjustment screw hole that communicates with the connecting hole. The adjustment bolt engages with the adjustment screw hole, and when one end of the adjustment bolt enters the connecting hole and abuts against the lower end face of the baffle, the baffle is in a horizontal state.

[0014] Furthermore, the adjustment assembly includes an adjustment telescopic rod and a swing arm. One end of the adjustment telescopic rod is rotatably connected to the spare guide rail, and the other end of the adjustment telescopic rod is rotatably connected to one end of the swing arm. The other end of the swing arm is fixedly connected to the rotating shaft.

[0015] Compared with existing technologies, the beneficial effects of the invention are:

[0016] 1. In this invention, the control panel allows workers to operate the movement of the active mechanism and the extension and retraction of the telescopic rod from a position away from the casting station, thereby controlling the movement and rotation of the casting ladle. This eliminates the need for workers to stand near the casting station to rotate the casting ladle, reducing the risk of workers being exposed to high-temperature radiation and splashed by molten iron, and improving the safety of workers.

[0017] 2. In this invention, because the gear on the support rod travels along the first guide rail and the roller on the telescopic rod travels along the second guide rail during the movement of the casting ladle, and the first and second guide rails are arranged side by side, the vertical state of the casting ladle can be stabilized, preventing the casting ladle from shaking during movement, reducing the risk of molten iron spillage from the casting ladle, and further improving the safety of workers.

[0018] 3. In this invention, the connecting rod can improve the stability of the support rod and the telescopic rod, thereby further reducing the risk of molten iron spillage in the casting ladle and improving the safety of workers.

[0019] 4. In this invention, the backup mechanism connects the second guide rail and the backup guide rail when the telescopic rod is damaged and cannot retract. This allows the telescopic rod to move upwards along the backup guide rail, facilitating the gradual vertical upward movement of the lower right end of the casting ladle. The middle of the casting ladle then gradually rotates downwards and tilts around the sliding pin, allowing the molten iron in the ladle to be poured into the mold. This improves the device's emergency response capability when the telescopic rod is damaged and reduces the impact on normal production.

[0020] 5. In this invention, two types of adjustment components are provided. Both types of adjustment components can adjust the state of the baffle. They are simple in structure and easy to maintain. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the background technology;

[0022] Figure 2 This is a perspective view of the casting device for casting wind turbine main shafts in Example 1;

[0023] Figure 3 This is a front view of the casting apparatus for casting wind turbine main shafts in Example 1;

[0024] Figure 4 This is a perspective view of the control panel in Example 1;

[0025] Figure 5 This is a partial three-dimensional structure of the casting device for wind turbine main shaft casting in Example 1. Figure 1 ;

[0026] Figure 6This is a partial three-dimensional structure of the casting device for wind turbine main shaft casting in Example 1. Figure 2 ;

[0027] Figure 7 This is a partial front view of the casting device for casting wind turbine main shafts in Example 1;

[0028] Figure 8 for Figure 7 State changes Figure 1 ;

[0029] Figure 9 for Figure 7 State changes Figure 2 ;

[0030] Figure 10 This is a partial three-dimensional view of the casting device for casting wind turbine main shafts in Example 2;

[0031] Figure 11 This is a magnified view of a portion of point A in Example 2;

[0032] Figure 12 This is a partial front view of the casting device for casting wind turbine main shafts in Example 2;

[0033] Figure 13 This is a partial three-dimensional structure of the casting device for wind turbine main shaft casting in Example 2. Figure 1 ;

[0034] Figure 14 for Figure 13 A magnified view of a section at point B in the middle;

[0035] Figure 15 This is a partial three-dimensional structure of the casting device for wind turbine main shaft casting in Example 2. Figure 2 ;

[0036] Figure 16 for Figure 15 A magnified view of a section at point C.

[0037] In the picture:

[0038] 1-Casting ladle, 1-1-Rotating seat, 1-2-Slide seat, 1-2-1-Long slot,

[0039] 2- Lifting frame,

[0040] 3-Hanging rings

[0041] 4-Handwheel,

[0042] 5-Support rod, 5-1-Sliding pin, 5-2-Connecting rod,

[0043] 6-Guide mechanism, 6-1-First guide rail, 6-1-1-First elongated hole, 6-1-2-Rack, 6-2-Second guide rail, 6-2-1-Second elongated hole, 6-3-Mounting rod,

[0044] 7-Active mechanism, 7-1-Gear, 7-2-Motor

[0045] 8-Telescopic pole,

[0046] 9-roller,

[0047] 10-Control panel, 10-1-Base, 10-2-Travel switch, 10-3-Return switch, 10-4-Stop movement switch, 10-5-Retraction switch, 10-6-Extend switch, 10-7-Stop extension switch, 10-8-Control module,

[0048] 11-Spare mechanism, 11-1-Spare guide rail, 11-1-1-Spare elongated hole, 11-1-2-Connecting hole, 11-1-3-Adjusting screw hole, 11-2-Rotating shaft, 11-3-Baffle, 11-4-Adjusting assembly, 11-4-1-Adjusting bolt, 11-4-2-Adjusting telescopic rod, 11-4-3-Swing arm. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Example 1:

[0051] like Figure 2-3 As shown, a casting device for casting wind turbine main shafts includes a casting ladle 1, a support rod 5, a guide mechanism 6, an active mechanism 7, a telescopic rod 8, a driven mechanism, and a control panel 10.

[0052] like Figure 5-7 As shown, the guiding mechanism 6 includes a first guide rail 6-1 and a second guide rail 6-2 arranged side by side. The first guide rail 6-1 is located below the second guide rail 6-2. The right ends of both the first guide rail 6-1 and the second guide rail 6-2 extend to the melting furnace, and the left ends of both the first guide rail 6-1 and the second guide rail 6-2 extend above the casting station. Furthermore, as... Figure 2-3As shown, the right end of the first guide rail 6-1 is lower than its left end, and the right end of the second guide rail 6-2 is lower than its left end. Lowering the right ends of the first and second guide rails 6-1 and 6-2 lowers the height of the casting ladle 1, making it easier to receive molten iron from the furnace. Raising the left ends of the first and second guide rails 6-1 and 6-2 raises the casting ladle 1, facilitating the pouring of molten iron into the wind turbine main shaft mold, which has a certain height.

[0053] like Figure 5-7 As shown, the first guide rail 6-1 has a first elongated hole 6-1-1, and a rack 6-1-2 is provided on the wall of the first elongated hole 6-1-1. The second guide rail 6-2 has a second elongated hole 6-2-1. Figure 2-3 As shown, mounting rods 6-3 are installed on the top surface of the first guide rail 6-1 and the top surface of the second guide rail 6-2, and the top of the mounting rods 6-3 is fixed to the top of the workshop.

[0054] like Figure 5-7 As shown, a rotating seat 1-1 is provided at the lower right end of the casting ladle 1, and a sliding seat 1-2 is provided in the middle of the casting ladle 1. A long groove 1-2-1 extending to the rotating seat 1-1 is provided on the sliding seat 1-2.

[0055] like Figure 5-7 As shown, the telescopic rod 8 can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder. The lower end of the telescopic rod 8 is rotatably connected to the rotating seat 1-1. The upper end of the telescopic rod 8 is provided with a driven mechanism. The driven mechanism includes a roller 9, which is rotatably mounted on the top of the telescopic rod 8. The roller 9 is located inside the second elongated hole 6-2-1 and can move along the hole wall of the second elongated hole 6-2-1.

[0056] like Figure 5-7 As shown, the lower end of the support rod 5 is provided with a sliding pin 5-1, which engages with the elongated groove 1-2-1. The upper end of the support rod 5 is provided with an active mechanism 7. The active mechanism 7 includes a motor 7-2 and a gear 7-1. The motor 7-2 can be a geared motor 7-2. The housing of the motor 7-2 is mounted on the upper end of the support rod 5. The output shaft of the motor 7-2 passes through the support rod 5 and connects to the gear 7-1. The gear 7-1 is located in the first elongated hole 6-1-1 and engages with the rack 6-1-2.

[0057] When motor 7-2 drives gear 7-1 to rotate clockwise (from...) Figure 3 (Angle), gear 7-1 moves from left to right along the first guide rail 6-1, and gear 7-1 drives support rod 5, motor 7-2, casting ladle 1, telescopic rod 8, and roller 9 to move together from left to right; when motor 7-2 drives gear 7-1 to rotate counterclockwise, gear 7-1 moves from right to left along the first guide rail 6-1, and gear 7-1 drives support rod 5, motor 7-2, casting ladle 1, telescopic rod 8, and roller 9 to move together from right to left.

[0058] like Figure 2-3 As shown, the control panel 10 can be installed in a location in the workshop far from the casting station. The control panel 10 is used to control the rotation of the motor 7-2 in the active mechanism 7 and the extension and retraction of the telescopic rod 8, so as to achieve movement and rotation control of the casting ladle 1. Specifically, as... Figure 4 As shown, the control panel 10 includes a base 10-1. The surface of the base 10-1 is provided with a travel switch 10-2, a return switch 10-3, a stop movement switch 10-4, a retraction switch 10-5, an extension switch 10-6, and a stop extension switch 10-7. The base 10-1 is equipped with a control module 10-8. The travel switch 10-2, return switch 10-3, stop movement switch 10-4, retraction switch 10-5, extension switch 10-6, and stop extension switch 10-7 are all electrically connected to the input terminal of the control module 10-8. The motor 7-2 and the telescopic rod 8 can be connected to the output terminal of the control module 10-8 through a wireless transmission module (not shown in the figure).

[0059] The initial state of casting ladle 1 is as follows: casting ladle 1 is located at the right end of the first guide rail 6-1 and the second guide rail 6-2, and the telescopic rod 8 is in an extended state, and casting ladle 1 is in a vertical state.

[0060] When using this device for casting wind turbine main shafts, the following operations are required:

[0061] (1) Pour the molten iron in the smelting furnace into the casting ladle 1, which is in its initial state.

[0062] (2) The worker presses the travel switch 10-2 on the control panel 10. The travel switch 10-2 sends a travel signal to the control module 10-8, and the control module 10-8 commands the output shaft of the motor 7-2 to rotate counterclockwise. The motor 7-2 drives the gear 7-1 to rotate counterclockwise, and the gear 7-1 drives the support rod 5, the motor 7-2, the casting ladle 1, the telescopic rod 8, and the roller 9 to move together from right to left. During this process, the gear 7-1 moves from right to left along the first guide rail 6-1, and the roller 9 moves from right to left along the second guide rail 6-2. Because the first guide rail 6-1 and the second guide rail 6-2 are set side by side, the casting ladle 1 remains vertical.

[0063] (3) When the casting ladle 1 moves to the top of the casting station, the worker presses the stop movement switch 10-4 on the control panel 10. The stop movement switch 10-4 sends a stop movement signal to the control module 10-8. The control module 10-8 commands the output shaft of the motor 7-2 to stop rotating, so that the casting ladle 1 stops moving.

[0064] (4) After the casting ladle 1 stops moving, the worker presses the retraction switch 10-5 on the control panel 10. The retraction switch 10-5 sends a retraction signal to the control module 10-8, and the control module 10-8 commands the telescopic rod 8 to gradually shorten. As the telescopic rod 8 shortens, it causes the lower right end of the casting ladle 1 to gradually move vertically upward, and the middle part of the casting ladle 1 gradually rotates and tilts downward around the sliding pin 5-1. Figures 8 to 9 The change in state allows the molten iron in casting ladle 1 to be poured into the mold.

[0065] (5) After the molten iron is poured out of the ladle 1, the worker presses the extension switch 10-6 on the control panel 10. The extension switch 10-6 sends an extension signal to the control module 10-8, and the control module 10-8 commands the telescopic rod 8 to gradually extend. As the telescopic rod 8 extends, the ladle 1 gradually returns to a vertical state.

[0066] (6) When the casting ladle 1 returns to the vertical position, the worker presses the stop telescopic switch 10-7 on the control panel 10. The stop telescopic switch 10-7 sends a stop telescopic signal to the control module 10-8. The control module 10-8 controls the telescopic rod 8 to stop telescopic, so that the casting ladle 1 remains in the vertical position.

[0067] (7) The worker presses the return switch 10-3 on the control panel 10. The return switch 10-3 sends a return signal to the control module 10-8, and the control module 10-8 commands the output shaft of the motor 7-2 to rotate clockwise. The motor 7-2 drives the gear 7-1 to rotate clockwise, and the gear 7-1 drives the support rod 5, the motor 7-2, the casting ladle 1, the telescopic rod 8, and the roller 9 to move together from left to right. Until the casting ladle 1 moves to the right end of the first guide rail 6-1 and the second guide rail 6-2, the worker presses the stop movement switch 10-4 to stop the movement of the casting ladle 1.

[0068] As can be seen from the above process, the setting of the control panel 10 allows the worker to operate the rotation of the motor 7-2 and the extension and retraction of the telescopic rod 8 from a position away from the casting station, thereby realizing the control of the movement and rotation of the casting ladle 1. This eliminates the need for the worker to stand near the casting station to rotate the casting ladle 1, reducing the risk of the worker being exposed to high temperature radiation and splashed by molten iron, and improving the safety of the worker's work.

[0069] In addition, in this device, during the movement of the casting ladle 1, the gear 7-1 on the support rod 5 travels along the first guide rail 6-1, and the roller 9 on the telescopic rod 8 travels along the second guide rail 6-2. The first guide rail 6-1 and the second guide rail 6-2 are arranged side by side, which can stabilize the vertical state of the casting ladle 1, prevent the casting ladle 1 from shaking during the movement, reduce the risk of molten iron spillage in the casting ladle 1, and further improve the safety of workers.

[0070] In addition, to improve the stability of the support rod 5 and the telescopic rod 8, the middle part of the support rod 5 and the middle part of the telescopic rod 8 are connected by a connecting rod 5-2.

[0071] Example 2:

[0072] This embodiment 2 is an improvement on embodiment 1: the device also includes a backup mechanism 11.

[0073] like Figure 10-16 As shown, the backup mechanism 11 includes a backup guide rail 11-1, a rotating shaft 11-2, a baffle 11-3, and an adjusting component 11-4. The backup guide rail 11-1 is tilted to the left, and its lower end is connected to the second guide rail 6-2. The backup guide rail 11-1 has a backup elongated hole 11-1-1, and the connection between the backup guide rail 11-1 and the second guide rail 6-2 has a connecting hole 11-1-2 for connecting the backup elongated hole 11-1-1 and the second elongated hole 6-2-1. The rotating shaft 11-2 is rotatably connected to the wall of the connecting hole 11-1-2, and the baffle 11-3 is fixedly mounted on the rotating shaft 11-2. The backup guide rail 11-1 is provided with an adjusting component 11-4 for adjusting the rotation state of the baffle 11-3.

[0074] When the adjusting component 11-4 rotates the baffle 11-3 to a horizontal position, as Figure 12 and Figure 14 As shown, the spare elongated hole 11-1-1 and the second elongated hole 6-2-1 cannot be connected through the connecting hole 11-1-2, thus closing the spare elongated hole 11-1-1. When the adjusting assembly 11-4 rotates the baffle 11-3 downward to an inclined state, the spare elongated hole 11-1-1 can be connected to the second elongated hole 6-2-1 through the connecting hole 11-1-2.

[0075] When workers discover that the telescopic rod 8 is damaged and cannot retract during maintenance, in order to smoothly carry out the casting operation before replacing or repairing the telescopic rod 8, workers can adjust the baffle 11-3 to an inclined state by adjusting component 11-4, so that the spare elongated hole 11-1-1 connects with the second elongated hole 6-2-1. When the casting ladle 1 moves from right to left, the gear 7-1 at the top of the support rod 5 moves from right to left along the first guide rail 6-1. The roller 9 at the top of the telescopic rod 8 first moves on the second guide rail 6-2. When it encounters the baffle 11-3, the roller 9 moves along the baffle 11-3 to the spare guide rail 11-1, so that the telescopic rod 8 moves upward as a whole. When the telescopic rod 8 moves upward, the telescopic rod 8 drives the lower right end of the casting ladle 1 to gradually move vertically upward. The middle part of the casting ladle 1 gradually rotates downward and tilts around the sliding pin 5-1, so that the molten iron in the casting ladle 1 can be poured into the mold.

[0076] As can be seen from the above process, the backup mechanism 11, when the telescopic rod 8 is damaged and cannot retract, connects the second guide rail 6-2 and the backup guide rail 11-1, allowing the telescopic rod 8 to move upward along the backup guide rail 11-1. This facilitates the gradual vertical upward movement of the lower right end of the casting ladle 1, causing the middle part of the casting ladle 1 to gradually rotate and tilt downward around the sliding pin 5-1, allowing the molten iron in the casting ladle 1 to be poured into the mold. Therefore, this improves the emergency response capability of the device when the telescopic rod 8 is damaged, and reduces the impact on normal production.

[0077] This embodiment also provides the structures of two adjustment components 11-4.

[0078] like Figure 10-12 As shown, the first type of adjustment component 11-4 includes an adjustment bolt 11-4-1. The spare guide rail 11-1 is provided with an adjustment screw hole 11-1-3, which communicates with a connecting hole 11-1-2. The adjustment bolt 11-4-1 engages with the adjustment screw hole 11-1-3. When the adjustment bolt 11-4-1 is turned counterclockwise, it gradually enters the connecting hole 11-1-2, allowing it to abut against the lower end face of the baffle 11-3, supporting the baffle 11-3 and keeping it horizontal. At this time, the spare elongated hole 11-1-1 and the second elongated hole 6-2-1 cannot communicate through the connecting hole 11-1-2, and the spare elongated hole 11-1-1 is closed. When the adjusting bolt 11-4-1 is turned to the right, and the adjusting bolt 11-4-1 gradually exits the connecting hole 11-1-2, the baffle 11-3 rotates downward to an inclined state under its own gravity. At this time, the spare long hole 11-1-1 can be connected to the second long hole 6-2-1 through the connecting hole 11-1-2.

[0079] like Figure 13-16 As shown, the second type of adjustment assembly 11-4 includes an adjusting telescopic rod 11-4-2 and a swing arm 11-4-3. One end of the adjusting telescopic rod 11-4-2 is rotatably connected to the spare guide rail 11-1, and the other end of the adjusting telescopic rod 11-4-2 is rotatably connected to one end of the swing arm 11-4-3. The other end of the swing arm 11-4-3 is fixedly connected to the rotating shaft 11-2. When the adjusting telescopic rod 11-4-2 extends, it pushes the swing arm 11-4-3, which in turn drives the rotating shaft 11-2 to rotate clockwise (see [reference]). Figure 16 The rotating shaft 11-2 drives the baffle 11-3 to rotate downwards. When the baffle 11-3 is tilted, the spare elongated hole 11-1-1 can connect to the second elongated hole 6-2-1 through the connecting hole 11-1-2. When the telescopic rod 11-4-2 is shortened, the telescopic rod 11-4-2 pulls the swing arm 11-4-3, and the swing arm 11-4-3 drives the rotating shaft 11-2 to rotate counterclockwise (see...). Figure 16The rotating shaft 11-2 drives the baffle 11-3 to rotate upward. When the baffle 11-3 rotates to the horizontal, the spare long hole 11-1-1 and the second long hole 6-2-1 cannot be connected through the connecting hole 11-1-2.

[0080] The adjustment components 11-4 of the two structures provided in this device can both adjust the state of the baffle 11-3. They are simple in structure and easy to maintain.

[0081] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A casting apparatus for casting wind turbine main shafts, comprising a casting ladle, characterized in that, It also includes a support rod, a guide mechanism, an active mechanism, a telescopic rod, a driven mechanism, and a control panel. The lower right end of the casting ladle is provided with a rotating seat, and the middle part of the casting ladle is provided with a sliding seat. The sliding seat is provided with a long groove extending to the rotating seat. The lower end of the support rod is provided with a sliding pin for cooperating with the long groove. The upper end of the support rod is provided with an active mechanism for moving along the guide mechanism. The guide mechanism is connected to the top of the workshop. The lower end of the telescopic rod is rotatably connected to the rotating seat. The upper end of the telescopic rod is provided with a driven mechanism for moving along the guide mechanism. The middle part of the support rod and the middle part of the telescopic rod are connected by a connecting rod. A control panel for controlling the movement of the active mechanism and the extension and retraction of the telescopic rod is provided in the workshop. The guiding mechanism includes a first guide rail and a second guide rail arranged side by side. The first guide rail has a first elongated hole, and a rack is provided on the wall of the first elongated hole. The second guide rail has a second elongated hole. The first guide rail is located below the second guide rail. Both the first and second guide rails are connected to the top of the workshop. The driving mechanism includes a gear located at the top of the support rod and a motor for driving the gear to rotate. The gear cooperates with the rack. The driven mechanism includes a roller located at the top of the telescopic rod. The roller cooperates with the second elongated hole. It also includes a backup mechanism, which includes a backup guide rail, a rotating shaft, a baffle, and an adjustment component. The backup guide rail is provided with a backup elongated hole and is tilted to the left. The lower end of the backup guide rail is connected to the second guide rail. The connection between the backup guide rail and the second guide rail is provided with a connecting hole for connecting the backup elongated hole and the second elongated hole. A rotating shaft is rotatably connected to the wall of the connecting hole, and a baffle is fixedly provided on the rotating shaft. An adjustment component is provided on the backup guide rail for adjusting the rotation state of the baffle. When the baffle is rotated downward to an inclined position, the backup elongated hole and the second elongated hole are connected. When the baffle is rotated to a horizontal position, the backup elongated hole is closed.

2. The casting device for casting wind turbine main shafts as described in claim 1, characterized in that, Both the first guide rail and the second guide rail are connected to the top of the workshop via mounting rods.

3. The casting device for casting wind turbine main shafts as described in claim 1, characterized in that, The control panel includes a base, inside which a control module is installed. The surface of the base is provided with a travel switch, a return switch, a stop movement switch, a retraction switch, an extension switch, and a stop telescopic switch for electrical connection with the input terminal of the control module. The motor and the telescopic rod are both connected to the output terminal of the control module.

4. The casting device for casting wind turbine main shafts as described in claim 1, characterized in that, The adjustment assembly includes an adjustment bolt, and the spare guide rail is provided with an adjustment screw hole. The adjustment screw hole communicates with the connecting hole, and the adjustment bolt cooperates with the adjustment screw hole. When one end of the adjustment bolt enters the connecting hole and abuts against the lower end face of the baffle, the baffle is in a horizontal state.

5. The casting device for casting wind turbine main shafts as described in claim 1, characterized in that, The adjustment assembly includes an adjustment telescopic rod and a swing arm. One end of the adjustment telescopic rod is rotatably connected to the spare guide rail, and the other end of the adjustment telescopic rod is rotatably connected to one end of the swing arm. The other end of the swing arm is fixedly connected to the rotating shaft.

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