Heat treatment quenching device for wind power flange forgings and quenching process of heat treatment quenching device

Abstract

The heat treatment quenching device comprises a bottom plate, and a box body is fixedly mounted at the middle end of the top of the bottom plate. The forging is hoisted to the position above the adjusting box through a workshop crane, the first servo electric cylinder is controlled by the PLC to synchronously stretch out, the adjusting box and the driving rotary roller are driven to move in the radial direction, clamping, centering and fixing of the wind power flange forgings of different specifications can be achieved, the device can adapt to the forgings of various sizes, and the universality and adaptability of the device are enhanced; meanwhile, local rapid induction heating is conducted on the wind power flange forge piece through a U-shaped opening coil, a servo gear motor is controlled through a PLC, four sets of driving rotating rollers are driven to rotate synchronously, the flange forge piece rotates at a constant speed along the top of a supporting rotating cylinder, it is ensured that the circumferential surface of the flange forge piece evenly passes through a heating area, and the heating efficiency is improved. The problem that a large-size forge piece is easily heated unevenly in a traditional heating mode is effectively solved, and overall even austenitizing is achieved.

Description

Technical Field

[0001] This invention relates to the field of wind power equipment manufacturing technology, specifically to a heat treatment quenching device and quenching process for wind turbine flange forgings. Background Technology

[0002] As a core connecting component of wind turbine generator sets, the mechanical properties of wind turbine flange forgings directly determine the operational stability and service life of the unit. The heat treatment quenching process is a key step in improving their hardness, wear resistance, and fatigue resistance. With the development of wind power equipment towards larger sizes, the diameter and weight of wind turbine flange forgings continue to increase, with some specifications exceeding 3 meters in diameter and weighing tens of tons. However, traditional quenching devices mostly adopt overall heating or fixed-point heating methods. When dealing with large-sized forgings, uneven heating and untimely cooling are prone to occur, resulting in unbalanced hardness distribution and excessive deformation of the forgings. At the same time, traditional support mechanisms are difficult to adapt to the stable load-bearing requirements of heavy forgings and lack effective drive adjustment functions, making it impossible to achieve continuous and orderly rotation of the forgings. This requires segmented shutdown operations for quenching, which not only reduces production efficiency but also easily causes inconsistent quenching layer thickness on the surface of the forgings, affecting product quality stability. Summary of the Invention

[0003] The purpose of this invention is to provide a heat treatment quenching device and quenching process for wind turbine flange forgings. By setting up multiple sets of radially adjustable drive rollers and support cylinders, combined with a synchronous rotation mechanism and a PLC control system, it achieves precise clamping, stable support and continuous uniform rotation of large-size wind turbine flange forgings. This effectively solves the problems of uneven hardness distribution and excessive deformation caused by uneven heating and untimely cooling in traditional quenching devices.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a heat treatment quenching device for wind turbine flange forgings, comprising: A base plate is provided, with a housing fixedly installed at the top center of the base plate. A servo geared motor is fixedly installed at the top center of the outer surface of the housing. A first bevel gear is fixedly installed at the output end of the servo geared motor. A rotating shaft is movably connected to the upper end of the housing via bearings on all four sides. A second bevel gear is fixedly installed on one side of the rotating shaft, and the second bevel gear meshes with the first bevel gear. Adjustment boxes are provided around the top of the base plate. A first servo electric cylinder is fixedly installed on the bottom of the outer surface of the adjustment box. A rotating sleeve is movably connected between the lower ends of the two sides of the inner cavity of the adjustment box through bearings. The inner cavity of the rotating sleeve is movably fitted onto the surface of the rotating shaft. A third bevel gear is fixedly installed at one end of the outer surface of the rotating sleeve. A drive roller is movably connected to the top of the adjustment box through bearings. A fourth bevel gear is fixedly installed at the bottom of the drive roller. The fourth bevel gear meshes with the third bevel gear. Fixing frames are fixedly installed at the upper ends of the two sides of the outer surface of the adjustment box. A supporting rotating cylinder is movably connected to the upper end of the fixing frame through bearings. A support platform is fixedly installed on the top of the base plate and at the front right of the housing. A control cabinet is fixedly installed between the right end of the support platform and the top of the base plate. A PLC controller is fixedly installed on the upper end of the control cabinet. An oil collection tank is fixedly installed on the top of the support platform. A second servo cylinder is fixedly installed on the upper left side of the inner cavity of the oil collection tank. A moving plate is fixedly installed at the output end of the second servo cylinder. A U-shaped open coil is fixedly installed on the upper right side of the moving plate. An oil spray pipe is fixedly installed on the upper end of the moving plate and in front of the U-shaped open coil. A conveying pipe is fixedly installed on the surface of the oil spray pipe. An oil pump is fixedly installed between the left end of the conveying pipe and the lower end of the front surface of the housing.

[0005] As a preferred embodiment, eight support frames are fixedly installed between the four sides of the outer surface of the housing and the four sides of the top of the bottom plate. A horizontal plate is fixedly installed between the upper ends of two support frames. The surface of the first servo cylinder is fixedly installed at the middle of the horizontal plate. Guide sleeves are fixedly installed at both ends of the outer surface of the adjustment box. The inner cavity of the guide sleeve is slidably connected to the upper end of the support frame.

[0006] As a preferred embodiment, a support plate is fixedly installed on the top of the outer surface of the adjustment box and at the end near the drive roller, and the top of the drive roller is movably connected to the upper end of the support plate through a bearing.

[0007] As a preferred embodiment, guide grooves are provided on both sides of the rotating shaft, and guide blocks are fixedly connected to both sides of the inner cavity of the rotating sleeve, with the surface of the guide block slidably connected to the surface of the guide groove.

[0008] As a preferred embodiment, stabilizing plates are fixedly installed around the top of the inner cavity of the box, and the lower end of the stabilizing plate is movably connected to the surface of the rotating shaft through a bearing.

[0009] As a preferred embodiment, an impurity filter plate is fixedly installed at the lower end of the inner cavity of the oil collecting tank, and a return pipe is fixedly installed between the bottom of the oil collecting tank and the front surface of the box body.

[0010] As a preferred embodiment, an oil receiving guide plate is fixedly installed on the upper end of the outer surface of the oil collecting tank, and the oil receiving guide plate is inclined.

[0011] As a preferred embodiment, the lower end of the movable plate is slidably connected with a guide crossbar, and there are two guide crossbars. The two sides of the guide crossbars are fixedly installed on the upper end of the inner cavity of the oil collection tank.

[0012] As a preferred embodiment, the PLC controller is electrically connected to the control cabinet, and the control cabinet is electrically connected to the servo geared motor, the first servo electric cylinder, the second servo electric cylinder, the oil pump, and the U-shaped open coil, respectively.

[0013] A quenching process for a heat treatment quenching device for wind turbine flange forgings includes the following steps: A. Workpiece clamping and positioning: The wind turbine flange forgings to be quenched are hoisted to the top of the four sets of adjustment boxes using the workshop overhead crane, so that the flange forgings are placed stably on the top of the support drum; the PLC controller controls the first servo cylinders to extend synchronously, driving the adjustment box and drive rollers to move radially until the four sets of drive rollers are in close contact with the outer circumference of the flange forgings, thus completing the clamping and centering of flange forgings of different specifications; B. Induction heating preparation: The second servo cylinder is extended by the PLC controller, pushing the moving plate and the U-shaped open coil installed on it closer to the flange forging, and adjusting to the set induction heating distance; the power supply of the U-shaped open coil is turned on to rapidly induction heat the local area of ​​the adjacent flange forging, so that its temperature rises to the austenitizing temperature. C. Uniform Rotational Heating: The servo reduction motor is started by the PLC controller, which drives the first bevel gear to rotate, causing the four sets of second bevel gears meshing with it to rotate synchronously. Then, the power is transmitted to the fourth bevel gear through the rotating shaft, rotating sleeve and third bevel gear, and finally drives the four sets of drive rollers to rotate synchronously. Under the friction of the drive rollers, the flange forging rotates at a uniform speed along the top of the support cylinder, ensuring that its circumferential surface passes evenly through the heating area of ​​the U-shaped open coil, and achieving uniform austenitization of the whole. D. Spray quenching and cooling: While induction heating is in progress, the oil pump is started by the PLC controller to pump the quenching oil stored in the box into the oil spray pipe through the delivery pipe. The quenching oil is continuously and evenly sprayed onto the surface of the flange forging after it has been heated by the U-shaped open coil through the oil spray hole at the bottom of the oil spray pipe, so as to achieve rapid and uniform oil quenching and cooling, complete the microstructure transformation, and improve the hardness and comprehensive mechanical properties of the flange forging.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a workshop overhead crane to hoist forgings onto an adjusting box. A PLC controller then controls the synchronous extension of a first servo cylinder, driving the adjusting box and drive rollers to move radially. This allows for the clamping and centering of wind turbine flange forgings of various specifications, adapting to forgings of multiple sizes and enhancing the device's versatility and adaptability. Simultaneously, a U-shaped open coil is used for localized rapid induction heating of the wind turbine flange forgings. The PLC controller controls a servo geared motor, which drives four sets of drive rollers to rotate synchronously, ensuring the flange forging rotates uniformly along the top of the supporting cylinder. This ensures the circumferential surface of the forging passes evenly through the heating area, effectively solving the problem of uneven heating that often occurs with large-sized forgings in traditional heating methods. This achieves overall uniform austenitization and improves the uniformity of the forging's hardness distribution. Furthermore, during induction heating, the PLC controller activates an oil pump, pumping quenching oil through a delivery pipe into an oil spraying pipe. The quenching oil is then continuously and uniformly sprayed onto the heated flange forging surface, achieving rapid and uniform oil quenching cooling. This effectively completes the microstructure transformation, significantly improving the hardness and overall mechanical properties of the flange forging. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the box structure of the present invention; Figure 3 This is a schematic diagram of the support platform structure of the present invention; Figure 4 This is a schematic cross-sectional view of the support platform of the present invention; Figure 5 This is a schematic cross-sectional view of the box structure of the present invention; Figure 6 This is a cross-sectional view of the regulating box of the present invention.

[0016] In the diagram: 1. Base plate; 2. Housing; 3. Control cabinet; 4. PLC controller; 5. Support platform; 6. Oil collection tank; 7. U-shaped open coil; 8. Oil receiving guide plate; 9. Oil pump; 10. Return pipe; 11. Support frame; 12. Adjustment box; 13. Rotating shaft; 14. Support plate; 15. Drive roller; 16. Horizontal plate; 17. First servo cylinder; 18. Guide sleeve; 19. Fixed frame; 20. Support drum; 21. Conveying pipe; 22. Impurity filter plate; 23. Second servo cylinder; 24. Moving plate; 25. Oil spray pipe; 26. Guide crossbar; 27. Servo geared motor; 28. First bevel gear; 29. ​​Second bevel gear; 30. Stabilizing plate; 31. Rotating sleeve; 32. Guide block; 33. Guide groove; 34. Third bevel gear; 35. Fourth bevel gear. Detailed Implementation

[0017] 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.

[0018] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0019] Example 1: Please refer to Figures 1-6 As shown, the present invention provides a heat treatment quenching device for wind turbine flange forgings, comprising: A base plate 1 is provided, and a housing 2 is fixedly installed at the middle of the top of the base plate 1. A servo geared motor 27 is fixedly installed at the middle of the top of the outer surface of the housing 2. A first bevel gear 28 is fixedly installed at the output end of the servo geared motor 27. A rotating shaft 13 is movably connected to the upper part of the housing 2 through bearings. A second bevel gear 29 is fixedly installed on one side of the rotating shaft 13. The second bevel gear 29 meshes with the first bevel gear 28. Adjustment boxes 12 are provided on all four sides above the base plate 1. A first servo electric cylinder 17 is fixedly installed on the bottom of the outer surface of the adjustment box 12. A rotating sleeve 31 is movably connected between the lower ends of the two sides of the inner cavity of the adjustment box 12 through bearings. The inner cavity of the rotating sleeve 31 is movably fitted on the surface of the rotating shaft 13. A third bevel gear 34 is fixedly installed on one end of the outer surface of the rotating sleeve 31. A drive roller 15 is movably connected to one end of the top of the adjustment box 12 through bearings. A fourth bevel gear 35 is fixedly installed at the bottom of the drive roller 15. The fourth bevel gear 35 meshes with the third bevel gear 34. A fixing frame 19 is fixedly installed on the upper ends of both sides of the outer surface of the adjustment box 12. A support rotating cylinder 20 is movably connected to the upper end of the fixing frame 19 through bearings. A support platform 5 is fixedly installed on the top of the base plate 1 and at the front right of the housing 2. A control cabinet 3 is fixedly installed between the right end of the support platform 5 and the top of the base plate 1. A PLC controller 4 is fixedly installed on the upper end of the control cabinet 3. An oil collection tank 6 is fixedly installed on the top of the support platform 5. A second servo electric cylinder 23 is fixedly installed on the upper left side of the inner cavity of the oil collection tank 6. A moving plate 24 is fixedly installed at the output end of the second servo electric cylinder 23. A U-shaped open coil 7 is fixedly installed on the upper right side of the moving plate 24. An oil spraying pipe 25 is fixedly installed on the upper end of the moving plate 24 and in front of the U-shaped open coil 7. A conveying pipe 21 is fixedly installed on the surface of the oil spraying pipe 25. An oil pump 9 is fixedly installed between the left end of the conveying pipe 21 and the lower end of the front surface of the housing 2.

[0020] In this technical solution, during operation, the forging is hoisted to the top of the regulating box 12 using a workshop overhead crane. The first servo cylinder 17 extends synchronously under the control of the PLC controller 4, driving the regulating box 12 and drive rollers 15 to move radially. This allows for the clamping and centering of wind turbine flange forgings of different specifications, adapting to various sizes of forgings and enhancing the versatility and adaptability of the device. Simultaneously, a U-shaped open coil 7 is used for localized rapid induction heating of the wind turbine flange forging. The PLC controller 4 controls the servo geared motor 27, which drives four sets of drive rollers 15 to rotate synchronously, enabling… The flange forging rotates at a uniform speed along the top of the supporting rotating cylinder 20, ensuring that its circumferential surface passes evenly through the heating area. This effectively solves the problem of uneven heating that is prone to occur in traditional heating methods for large-sized forgings, achieving overall uniform austenitization and improving the uniformity of the hardness distribution of the forging. Simultaneously with induction heating, the oil pump 9 is started by the PLC controller 4, and quenching oil is pumped into the oil spraying pipe 25 through the delivery pipe 21. The quenching oil is then continuously and uniformly sprayed onto the heated flange forging surface, achieving rapid and uniform oil quenching cooling. This effectively completes the microstructure transformation and significantly improves the hardness and comprehensive mechanical properties of the flange forging.

[0021] Example 2: Based on Example 1, the present invention as follows... Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, eight support frames 11 are fixedly installed around the outer surface of the housing 2 and around the top of the base plate 1. A horizontal plate 16 is fixedly installed between the upper ends of two support frames 11. The surface of the first servo cylinder 17 is fixedly installed at the middle of the horizontal plate 16. Guide sleeves 18 are fixedly installed at both ends of the outer surface of the adjustment box 12. The inner cavity of the guide sleeve 18 is slidably connected to the upper end of the support frame 11. A support plate 14 is fixedly installed at the top of the outer surface of the adjustment box 12 and at the end near the drive roller 15. The top of the drive roller 15 is movably connected to the upper end of the support plate 14 through a bearing. Guide grooves 33 are opened on both sides of the rotating shaft 13. Guide blocks 32 are fixedly connected to both sides of the inner cavity of the rotating sleeve 31. The surface of the guide block 32 is slidably connected to the surface of the guide groove 33. A stabilizing plate 30 is fixedly installed around the top of the inner cavity of the housing 2. The lower end of the stabilizing plate 30 is movably connected to the surface of the rotating shaft 13 through a bearing.

[0022] In this technical solution, the support frame 11 and guide sleeve 18 are used to provide stable support and guidance for the adjustment box 12, preventing it from tilting or shifting during movement and ensuring stable movement. The horizontal plate 16 is used to install and fix the first servo cylinder 17. The support plate 14 is used to support the top of the drive roller 15, preventing it from tilting due to force. The guide groove 33 and guide block 32 are used to guide the shaft 13 and the rotating sleeve 31, ensuring that the rotating sleeve 31 can rotate synchronously under the drive of the shaft 13. The stabilizing plate 30 is used to support the end of the shaft 13, preventing it from tilting due to the rotational force of the second bevel gear 29, and ensuring stable drive operation.

[0023] Example 3: Based on Example 1, the present invention as follows Figure 1 , Figure 3 and Figure 4 As shown, an impurity filter plate 22 is fixedly installed at the lower end of the inner cavity of the oil collecting tank 6. A return pipe 10 is fixedly installed between the bottom of the oil collecting tank 6 and the front surface of the box 2. An oil receiving guide plate 8 is fixedly installed at the upper end of the outer surface of the oil collecting tank 6. The oil receiving guide plate 8 is inclined. A guide crossbar 26 is slidably connected to the lower end of the moving plate 24. There are two guide crossbars 26. The two sides of the guide crossbars 26 are fixedly installed at the upper end of the inner cavity of the oil collecting tank 6.

[0024] In this technical solution, by setting up the impurity filter plate 22 and the return pipe 10, the quenching oil collected in the oil collection tank 6 can be collected in a concentrated manner and returned to the box 2 for centralized collection, thereby realizing the recycling of quenching oil, reducing resource waste and operating costs. By setting up the guide bar 26, the purpose of supporting and guiding the moving plate 24 is achieved, avoiding the tilting and displacement of the moving plate 24 during movement.

[0025] Example 4: Based on Example 1, the present invention is as follows... Figures 1-6 As shown, the PLC controller 4 is electrically connected to the control cabinet 3, and the control cabinet 3 is electrically connected to the servo geared motor 27, the first servo electric cylinder 17, the second servo electric cylinder 23, the oil pump 9 and the U-shaped open coil 7 respectively.

[0026] In this technical solution, the PLC controller 4 is electrically connected to the control cabinet 3, which can centrally control the operation of equipment such as the servo geared motor 27, the first servo electric cylinder 17, the second servo electric cylinder 23, the oil pump 9, and the U-shaped open coil 7, thereby realizing automated operation and improving production efficiency and the accuracy and stability of quenching operations.

[0027] Example 5: A quenching process for a heat treatment quenching device for wind turbine flange forgings, comprising the following steps: A. Workpiece clamping and positioning: The wind turbine flange forging to be quenched is hoisted to the top of the four sets of adjustment boxes 12 using the workshop overhead crane, so that the flange forging is placed stably on the top of the support rotating cylinder 20; the PLC controller 4 controls each first servo cylinder 17 to extend synchronously, driving the adjustment box 12 and the drive roller 15 to move radially until the four sets of drive rollers 15 are in close contact with the outer circumferential surface of the flange forging, thus completing the clamping and centering of flange forgings of different specifications; B. Induction heating preparation: The second servo cylinder 23 is extended by the PLC controller 4, pushing the moving plate 24 and the U-shaped open coil 7 installed on it closer to the flange forging, and adjusting to the set induction heating distance; the power supply of the U-shaped open coil 7 is turned on to quickly induction heat the local area of ​​the adjacent flange forging, so that its temperature rises to the austenitizing temperature. C. Uniform Rotational Heating: The servo reduction motor 27 is started by the PLC controller 4, which drives the first bevel gear 28 to rotate, thereby driving the four sets of second bevel gears 29 meshing with it to rotate synchronously. Then, the power is transmitted to the fourth bevel gear 35 through the rotating shaft 13, rotating sleeve 31 and third bevel gear 34, and finally drives the four sets of drive rollers 15 to rotate synchronously. Under the friction drive of the drive rollers 15, the flange forging rotates at a uniform speed along the top of the support cylinder 20, ensuring that its circumferential surface passes evenly through the heating area of ​​the U-shaped open coil 7, and achieving uniform austenitization of the whole. D. Spray quenching and cooling: While induction heating is in progress, the oil pump 9 is started by the PLC controller 4 to pump the quenching oil stored in the housing 2 into the oil spray pipe 25 through the delivery pipe 21. The quenching oil is continuously and evenly sprayed onto the surface of the flange forging after it has been heated by the U-shaped open coil 7 through the oil spray hole at the bottom of the oil spray pipe 25, so as to achieve rapid and uniform oil quenching and cooling, complete the microstructure transformation, and improve the hardness and comprehensive mechanical properties of the flange forging.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A heat treatment quenching device for a wind power flange forging, characterized in that, Include: The bottom plate (1), the middle end of the top of the bottom plate (1) is fixedly installed with a box (2), the middle end of the top of the outer surface of the box (2) is fixedly installed with a servo reducer motor (27), the output end of the servo reducer motor (27) is fixedly installed with a first bevel gear (28), the upper end of the box (2) is movably connected with a rotating shaft (13) through bearings on the periphery, a second bevel gear (29) is fixedly installed on one side of the rotating shaft (13), and the second bevel gear (29) is engaged with the first bevel gear (28); The upper end of the box (2) is movably connected with a rotating shaft (13) through bearings on the periphery, a second bevel gear (29) is fixedly installed on one side of the rotating shaft (13), and the second bevel gear (29) is engaged with the first bevel gear (28); The top of the bottom plate (1) and the right front of the box (2) are fixedly installed with a support table (5), the right end of the support table (5) and the top of the bottom plate (1) are fixedly installed with a control cabinet (3), the upper end of the control cabinet (3) is fixedly installed with a PLC controller (4), the top of the support table (5) is fixedly installed with an oil collecting groove (6), the upper end of the left side of the oil collecting groove (6) is fixedly installed with a second servo cylinder (23), the output end of the second servo cylinder (23) is fixedly installed with a moving plate (24), the upper end of the right side of the moving plate (24) is fixedly installed with a U-shaped opening coil (7), the upper end of the moving plate (24) and the front of the U-shaped opening coil (7) are fixedly installed with an oil shower pipe (25), and the surface of the oil shower pipe (25) is fixedly installed with a conveying pipe (21). The left end of the conveying pipe (21) and the lower end of the front surface of the box (2) are fixedly installed with an oil pump (9).

2. The heat treatment quenching device for a wind power flange forge piece according to claim 1, characterized in that: The outer surface of the box (2) and the top of the bottom plate (1) are fixedly installed with support frames (11) on the periphery, the number of the support frames (11) is eight, the upper ends of two support frames (11) are fixedly installed with a horizontal plate (16), the surface of the first servo cylinder (17) is fixedly installed in the middle end of the horizontal plate (16), and the outer surfaces of the adjusting boxes (12) are fixedly installed with guide sliding sleeves (18) on both sides. The inner cavity of the guide sliding sleeve (18) is slidably connected to the upper end of the support frame (11).

3. The heat treatment quenching device for wind power flange forgings according to claim 1, characterized in that: The top of the outer surface of the adjusting box (12) is fixedly provided with a support plate (14) near one end of the driving roller (15), and the top of the driving roller (15) is movably connected to the upper end of the support plate (14) through a bearing.

4. The heat treatment quenching device for wind power flange forgings according to claim 1, characterized in that: The two sides of the rotating shaft (13) are provided with guide grooves (33), and the two sides of the inner cavity of the rotating sleeve (31) are fixedly connected with guide blocks (32), and the surface of the guide block (32) is slidably connected with the surface of the guide groove (33).

5. The heat treatment quenching device for wind power flange forgings according to claim 1, characterized in that: The top of the inner cavity of the box body (2) is fixedly provided with a stabilizing plate (30) around, and the lower end of the stabilizing plate (30) is movably connected to the surface of the rotating shaft (13) through a bearing.

6. The heat treatment quenching device for wind power flange forgings according to claim 1, characterized in that: The lower end of the inner cavity of the oil collecting groove (6) is fixedly provided with an impurity filter plate (22), and the bottom of the oil collecting groove (6) and the front surface of the box body (2) are fixedly provided with a backflow pipe (10).

7. The heat treatment quenching device for wind power flange forgings according to claim 1, characterized in that: The upper end of the outer surface of the oil collecting groove (6) is fixedly provided with an oil receiving guide plate (8), and the oil receiving guide plate (8) is inclined.

8. The heat treatment quenching device for wind power flange forgings according to claim 1, characterized in that: The lower end of the moving plate (24) is slidably connected with a guide cross rod (26), the number of the guide cross rod (26) is two, and the two sides of the guide cross rod (26) are fixedly installed on the upper end of the inner cavity of the oil collecting groove (6).

9. The heat treatment quenching device for wind power flange forgings according to claim 1, characterized in that: The PLC controller (4) is electrically connected with the control cabinet (3), and the control cabinet (3) is electrically connected with the servo reducer motor (27), the first servo cylinder (17), the second servo cylinder (23), the oil pump (9) and the U-shaped opening coil (7).

10. The quenching process of the heat treatment quenching device for wind power flange forgings, applied to the heat treatment quenching device for wind power flange forgings in any of claims 1-9, characterized in that, The steps include: A. Workpiece clamping and positioning: the wind power flange forge piece to be quenched is hoisted to the upper side of four adjusting boxes (12) by a workshop rowing crane, and the flange forge piece is stably placed on the top of the supporting rotating cylinder (20); the first servo cylinders (17) are synchronously extended by the PLC controller (4), the adjusting boxes (12) and the driving rollers (15) are driven to move radially, until the four driving rollers (15) are in close contact with the outer circumferential surface of the flange forge piece, the clamping and centering of the flange forge piece of different specifications are completed; B. Induction heating preparation: the moving plate (24) and the U-shaped opening coil (7) installed thereon are pushed to the flange forge piece by the extension of the second servo cylinder (23) controlled by the PLC controller (4), and the induction heating distance is adjusted to the set value; the power supply of the U-shaped opening coil (7) is turned on, the local area of the adjacent flange forge piece is rapidly inductively heated, and the temperature is raised to the austenitizing temperature; C. Rotating uniform heating: the servo reducer motor (27) is started by the PLC controller (4), the first bevel gear (28) is driven to rotate, the four second bevel gears (29) meshed with the first bevel gear (28) are synchronously rotated, and the power is transmitted to the fourth bevel gear (35) through the rotating shaft (13), the rotating sleeve (31) and the third bevel gear (34), finally the four driving rollers (15) are synchronously rotated; under the friction driving of the driving roller (15), the flange forge piece rotates at a constant speed along the top of the supporting rotating cylinder (20), ensuring that the circumferential surface of the flange forge piece uniformly passes through the heating area of the U-shaped opening coil (7), realizing the uniform austenitizing of the whole flange forge piece. D. Spray quenching cooling: while inductively heating, the oil pump (9) is started by the PLC controller (4), the quenching oil stored in the box (2) is pumped into the oil spraying pipe (25) through the conveying pipe (21), and through the oil injection holes at the bottom of the oil spraying pipe (25), the surface of the flange forge piece heated by the U-shaped open coil (7) is continuously and uniformly sprayed with quenching oil, realizing rapid and uniform oil quenching cooling, completing the organization transformation, and improving the hardness and comprehensive mechanical properties of the flange forge piece.

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