Downward pressing type T-shaped wind power flange ring rolling device and using method thereof

Abstract

The invention discloses a downward pressing type T-shaped wind power flange ring rolling device and a using method thereof. The device comprises a machining table which comprises a table plate and a support arranged on the bottom side of the table plate; the ring expanding mechanism is arranged in the middle of the top side of the table plate, the two ring rolling mechanisms are symmetrically arranged, the ring rolling mechanisms are arranged on the table plate and located on the two sides of the ring expanding mechanism, and the rolling shafts are annularly distributed on the table plate. The ring expanding device is provided with the ring expanding mechanism, two rotating shafts are driven by a driving device to rotate and expand outwards at the same time, ring expanding machining of a ring blank is achieved, in the ring expanding process of the ring blank, a rolling part is pushed to move through pushing force generated when the ring blank is expanded, two conical pressing rollers of the rolling part are made to get close to each other to roll the ring blank, and therefore the ring blank expanding efficiency is improved. The ring rolling device has the advantages that the structure is simple, the size is small, the occupied space is reduced, the device is convenient to use flexibly, the number of driving equipment of the device is small, the energy consumption is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind power flanges, and in particular to a downward-pressed T-shaped wind power flange ring rolling device and a use method thereof. Background Art

[0002] Wind power generation refers to the conversion of wind kinetic energy into electrical energy. Wind energy is a clean, pollution-free, renewable energy source that has been used by people for a long time, mainly through windmills to pump water, grind flour, etc. People are interested in how to use wind to generate electricity. Using wind power to generate electricity is very environmentally friendly, and the wind energy reserves are huge. Therefore, it is increasingly valued by countries around the world. Wind power flanges are simply wind turbine flanges. Wind power flanges are also called wind tower flanges. T-type wind power flanges are wind power flanges with T-shaped cross-sections. The ring blank processing of T-type wind power flanges can be processed and formed by ring rolling machines. Ring rolling is a plastic processing process that uses ring rolling machines to make the rings produce continuous local plastic deformation, thereby achieving wall thickness reduction, diameter expansion, and cross-sectional profile forming.

[0003] The existing ring rolling machine has a complex structure and a large size. It is composed of multiple groups of motors, hydraulic rods and cylinders. When processing the ring blank, multiple groups of driving equipment are required to cooperate. As a result, the energy consumption and space occupied by the ring rolling machine are large, which is not conducive to the flexible use of the equipment. Therefore, the present invention proposes a downward pressure T-type wind power flange ring rolling device and a method of using the same to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a downward-pressed T-type wind turbine flange rolling ring device and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a downward-pressed T-shaped wind turbine flange ring rolling device, comprising a processing table, including a table plate and a bracket arranged on the bottom side of the table plate; The ring expansion mechanism is arranged at the middle of the top side of the table, and the ring expansion mechanism includes a linear slide rail, two expansion pieces slidably arranged on the linear slide rail, a bidirectional screw rod arranged above the linear slide rail, and a motor arranged on one side of the linear slide rail, the bidirectional screw rod passes through the two expansion pieces and is threadedly connected thereto, and the output end of the motor is connected to one end of the bidirectional screw rod; The ring rolling mechanism is symmetrically arranged in two groups, and the ring rolling mechanism is arranged on the table and located on both sides of the ring expanding mechanism. The ring rolling mechanism includes a bearing frame, two symmetrically arranged inclined slide rails, and a rolling member slidably arranged between the two inclined slide rails, the inclined slide rail above the rolling member is installed on the bearing frame, and the inclined slide rail below the rolling member is installed on the table; Rollers and rings are arranged on the table, and four groups of rollers are arranged and distributed between the ring expanding mechanism and the ring rolling mechanism.

[0006] As a preferred solution of the present invention, the expansion member includes a slider, a pillar arranged on the top of the slider and a rotating shaft arranged on the top of the pillar, and the slider is slidably arranged on the linear slide rail and is threadedly connected to the bidirectional screw.

[0007] As a preferred solution of the present invention, the ring expansion mechanism further includes a transmission shaft arranged above the bidirectional screw and driven spur gears arranged at both ends of the transmission shaft, the bidirectional screw is provided with driving spur gears below the two driven spur gears of the transmission shaft, the driving spur gear of the bidirectional screw is meshed with the driven spur gear of the transmission shaft, support blocks are arranged on both sides of the top of the linear slide rail, and the bidirectional screw and the transmission shaft are interspersed on the support blocks.

[0008] As a preferred solution of the present invention, wherein: a slot is provided at the top of the pillar, a cavity is provided at the bottom of the pillar, a connecting shaft is interspersed between the slot and the cavity of the pillar, the rotating shaft is inserted into the slot of the pillar and connected to the top of the connecting shaft, a driven bevel gear is provided at the bottom end of the connecting shaft, a driving bevel gear is also provided in the cavity of the pillar, the driving bevel gear is meshed with the driven bevel gear and is located on one side of it, the transmission shaft passes through the pillar, and the driving bevel gear is interspersed on the transmission shaft.

[0009] As a preferred solution of the present invention, the transmission shaft is provided with spline teeth, a spline groove is provided in the middle of the active bevel gear, the transmission shaft is inserted into the spline groove of the active bevel gear, circular holes are provided on both sides of the pillar, and the inner diameter of the circular hole matches the outer diameter of the spline teeth of the transmission shaft.

[0010] As a preferred solution of the present invention, a collar is provided on one side of the slider, the collars of the two sliders on the linear slide rail are symmetrically arranged, the collar is sleeved on the outside of the bidirectional screw, a spiral groove is provided on the inner wall of the collar away from the slider, and an annular groove is provided on the inner wall of the collar close to the slider, and the annular groove is connected to one end of the spiral groove; Limit pins are also arranged on both sides of the bidirectional screw, and an annular plate is sleeved on the outer sides of the two limit pins of the bidirectional screw. A first spring is connected between the annular plate and the support block, and the first spring is sleeved on the outside of the bidirectional screw.

[0011] As a preferred solution of the present invention, the rolling element comprises a bearing shaft, an annular pressing roller rotatably arranged in the middle of the bearing shaft, and a sliding shaft and a conical pressing roller symmetrically arranged at both ends of the bearing shaft; One end of the slide shaft is slidably arranged on the inclined slide rail, the other end of the slide shaft is provided with a piston groove, both ends of the bearing shaft are inserted into the piston groove of the slide shaft, and the conical pressure roller is rotatably arranged on one side of the slide shaft.

[0012] As a preferred solution of the present invention, wherein: a support rod is provided on one side of the inclined slide rail, the bottom end of the support rod is installed on the table plate, the load-bearing shaft is located on both sides of the annular pressure roller and is clamped with support rings, two telescopic rods are provided between the support rod and the support ring, one end of the telescopic rod is connected to the support rod, and the other end of the telescopic rod is connected to the support ring, a baffle is provided on the side of the telescopic rod close to the support ring, and the telescopic rod is located between the baffle and the support rod and is sleeved with a second spring.

[0013] As a preferred solution of the present invention, a V-shaped inclined surface is formed between the two inclined slide rails of the ring expanding mechanism, and when the rolling member slides along the inclined slide rail and moves away from the ring expanding mechanism, the two conical rollers of the rolling member approach each other.

[0014] A method for using a downward-pressed T-type wind turbine flange ring rolling device comprises the following steps: S1, loading stage: the ring blank is placed on the roller, and the two rotating shafts of the ring expansion mechanism are placed on the inner side of the ring blank; S2, ring expansion stage: start the motor, so that the output shaft of the motor drives the bidirectional screw to rotate, and the two sliders on the bidirectional screw slide in opposite directions along the linear guide rail, and the movement of the slider drives the support and the rotating shaft to move at the same time; S3. When the bidirectional screw rotates, it also drives the active spur gear, the driven spur gear and the transmission shaft to rotate, and the transmission shaft drives the active bevel gear, the driven bevel gear, the connecting shaft and the rotating shaft to rotate. When the slider moves, the active bevel gear slides and rotates along the transmission shaft, causing the two rotating shafts to rotate and gradually expand outward, and the ring embryo is driven to rotate and expand through the rotating shaft; S4, ring rolling stage, the ring blank is gradually expanded through the ring expansion mechanism. When the ring blank expands, the outer side of the ring blank pushes the annular pressure roller, the bearing shaft and the support ring to move, and the annular pressure roller rotates with the ring blank, and the bearing shaft pushes the sliding shaft to slide along the inclined slide rail. The two ends of the bearing shaft gradually penetrate into the piston groove of the sliding shaft, and the bearing shaft pushes the telescopic rod to contract and compress the second spring, and the two conical pressure rollers approach each other and roll the ring blank; S5. When the slider moves to the outermost side of the bidirectional screw, the limit pin on the bidirectional screw is screwed into the sleeve ring of the slider, and the limit pin enters the annular groove along the spiral groove of the sleeve ring and rotates. At this time, the slider is disengaged from the thread of the bidirectional screw, and one end of the sleeve ring pushes the ring plate to move and compresses the first spring, so that the slider does not move anymore. The bidirectional screw continues to rotate and drives the rotating shaft to rotate, and the ring blank is continuously rolled to the required thickness. S6, material taking stage: stop the motor, make the ring blank no longer rotate and take it out, at this time, the ring blank no longer resists the annular pressure roller, so that the second spring stretches and pushes the support ring and the load-bearing shaft to move through the telescopic rod, resets the roller pressing part, and then reverses the motor, so that the output shaft of the motor drives the bidirectional screw to reverse, under the thrust of the first spring and the ring plate, the limit pin of the bidirectional screw enters the spiral groove from the annular groove of the ring plate until the limit pin moves out of the ring plate, the slider re-matches with the thread of the bidirectional screw, and the bidirectional screw continues to reverse until the expansion part is reset, and then stop the motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention is provided with a ring expansion mechanism, which drives two rotating shafts to expand outward while rotating through a driving device, thereby realizing the ring expansion processing of the ring blank. In addition, during the ring expansion process of the ring blank, the thrust of the ring blank expansion drives the rolling member to move, so that the two conical rollers of the rolling member are close to each other to roll the ring blank, and the ring blank is rolled into a required thickness. The ring rolling device has a simple structure and a small size, which reduces the space occupied and is convenient for flexible use. In addition, the number of driving devices of the device is small, which reduces energy consumption and improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure when the ring embryo is expanded in the present invention; Figure 2 It is a schematic diagram of the structure when the ring blank is rolled in the present invention; Figure 3 It is a structural schematic diagram of the ring expansion mechanism of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 6 It is a structural schematic diagram of the ring rolling mechanism of the present invention; Figure 7 It is a schematic structural diagram of the bidirectional screw of the present invention when the limit pin is screwed into the collar.

[0017] In the figure: 1, processing table; 11, table plate; 12, bracket; 2, ring expansion mechanism; 21, linear slide rail; 22, expansion piece; 221, slider; 222, support; 223, rotating shaft; 224, connecting shaft; 225, driven bevel gear; 226, driving bevel gear; 227, sleeve ring; 23, bidirectional screw; 231, stop pin; 232, ring plate; 233, first spring; 24, motor; 2 5. Transmission shaft; 26. Driven spur gear; 27. Driving spur gear; 28. Support block; 3. Rolling ring mechanism; 31. Carrying frame; 32. Inclined slide rail; 33. Roller; 331. Carrying shaft; 332. Annular pressure roller; 333. Sliding shaft; 334. Conical pressure roller; 335. Piston groove; 336. Support ring; 337. Telescopic rod; 338. Second spring; 34. Support rod; 4. Roller. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 7 , a downward pressure T-type wind turbine flange ring rolling device, comprising a processing table 1, including a table plate 11 and a bracket 12 arranged on the bottom side of the table plate 11; The ring expansion mechanism 2 is arranged at the middle of the top side of the table 11, and includes a linear slide 21, two expansion pieces 22 slidably arranged on the linear slide 21, a bidirectional screw 23 arranged above the linear slide 21, and a motor 24 arranged on one side of the linear slide 21. The bidirectional screw 23 passes through the two expansion pieces 22 and is threadedly connected thereto, and the output end of the motor 24 is connected to one end of the bidirectional screw 23; The ring rolling mechanism 3 is symmetrically arranged in two groups. The ring rolling mechanism 3 is arranged on the table 11 and located on both sides of the ring expanding mechanism 2. The ring rolling mechanism 3 includes a bearing frame 31, two symmetrically arranged inclined slide rails 32, and a rolling member 33 slidably arranged between the two inclined slide rails 32. The inclined slide rail 32 above the rolling member 33 is installed on the bearing frame 31, and the inclined slide rail 32 below the rolling member 33 is installed on the table 11. Rollers 4 are arranged on the platform 11, and four groups of rollers 4 are arranged between the ring expanding mechanism 2 and the ring rolling mechanism 3; It should be noted that vertical plates are inserted at both ends of the roller 4, and the roller 4 is installed on the table 11 through the vertical plates. The two rollers 4 on both sides of the ring expansion mechanism 2 are symmetrically arranged, and the minimum angle between the two rollers 4 is 60 degrees and the maximum angle is 120 degrees.

[0020] In this embodiment, the expansion member 22 includes a slider 221, a support 222 disposed on the top of the slider 221, and a rotating shaft 223 disposed on the top of the support 222. The slider 221 is slidably disposed on the linear guide rail 21 and is threadedly connected to the bidirectional screw 23. It should be noted that the bidirectional screw 23 is provided with two opposite external threads, and the two sliders 221 are provided with threaded holes that match the external threads of the bidirectional screw 23. The sliders 221 are threadedly connected with the bidirectional screw 23 through threaded cooperation. When the bidirectional screw 23 rotates, the sliders 221 can move in different directions along the bidirectional screw 23.

[0021] In this embodiment, the ring expansion mechanism 2 also includes a transmission shaft 25 arranged above the bidirectional screw 23 and driven spur gears 26 arranged at both ends of the transmission shaft 25. The bidirectional screw 23 is provided with a driving spur gear 27 below the two driven spur gears 26 of the transmission shaft 25. The driving spur gear 27 of the bidirectional screw 23 is meshed with the driven spur gear 26 of the transmission shaft 25. Specifically, the outer diameter of the driving spur gear 27 is larger than the outer diameter of the driven spur gear 26. Support blocks 28 are provided on both sides of the top of the linear slide rail 21, and the bidirectional screw 23 and the transmission shaft 25 are interspersed on the support blocks 28.

[0022] In this embodiment, a slot is provided at the top of the pillar 222, a cavity is provided at the bottom of the pillar 222, a connecting shaft 224 is interspersed between the slot and the cavity of the pillar 222, a rotating shaft 223 is inserted into the slot of the pillar 222 and connected to the top of the connecting shaft 224, a driven bevel gear 225 is provided at the bottom end of the connecting shaft 224, a driving bevel gear 226 is also provided in the cavity of the pillar 222, the driving bevel gear 226 is meshed with the driven bevel gear 225 and is located on one side thereof, the transmission shaft 25 passes through the pillar 222, and the driving bevel gear 226 is interspersed on the transmission shaft 25; It should be noted that the driving bevel gears 226 in the two pillars 222 are located on the same side of the driven bevel gear 225, so that the driven bevel gears 225 and the rotating shaft 223 of the two expansion members 22 rotate in the same direction; Specifically, spline teeth are provided on the transmission shaft 25, and a spline groove is provided in the middle of the active bevel gear 226. The transmission shaft 25 is inserted into the spline groove of the active bevel gear 226. Circular holes are provided on both sides of the pillar 222, and the inner diameter of the circular hole matches the outer diameter of the spline teeth of the transmission shaft 25. When the transmission shaft 25 rotates and the expansion piece 22 moves, the active bevel gear 226 can slide along the transmission shaft 25 and rotate with it.

[0023] In this embodiment, a collar 227 is provided on one side of the slider 221. The collars 227 of the two sliders 221 on the linear guide rail 21 are symmetrically arranged. The collar 227 is sleeved on the outside of the bidirectional screw 23. A spiral groove is provided on the inner wall of the collar 227 away from the slider 221. An annular groove is provided on the inner wall of the collar 227 close to the slider 221. The annular groove is connected to one end of the spiral groove. Limiting pins 231 are also provided on both sides of the bidirectional screw 23. Ring plates 232 are sleeved on the outer sides of the two limiting pins 231 of the bidirectional screw 23. A first spring 233 is connected between the ring plate 232 and the support block 28. The first spring 233 is sleeved on the outside of the bidirectional screw 23. It should be noted that when the slider 221 moves to the outermost side of the bidirectional screw 23, the limit pin 231 on the bidirectional screw 23 is screwed into the collar 227 of the slider 221, and the limit pin 231 enters the annular groove along the spiral groove of the collar 227 and rotates. At this time, the slider 221 is disengaged from the thread of the bidirectional screw 23, so that the slider 221 no longer moves, and the bidirectional screw 23 continues to rotate and drives the rotating shaft 223 to rotate, and the ring blank is continuously rolled.

[0024] In this embodiment, the rolling member 33 includes a bearing shaft 331, an annular pressing roller 332 rotatably arranged in the middle of the bearing shaft 331, and a sliding shaft 333 and a conical pressing roller 334 symmetrically arranged at both ends of the bearing shaft 331; One end of the sliding shaft 333 is slidably arranged on the inclined sliding rail 32, and the other end of the sliding shaft 333 is provided with a piston groove 335, both ends of the bearing shaft 331 are inserted into the piston groove 335 of the sliding shaft 333, and the conical pressure roller 334 is rotatably arranged on one side of the sliding shaft 333; It should be noted that a circular shaft is provided on one side of the sliding shaft 333, and the conical pressure roller 334 is rotatably connected to the circular shaft. If it is necessary to provide power to the conical pressure roller 334, an annular conical tooth can be provided at the conical bottom of the conical pressure roller 334, and a driving device is provided on one side of the conical pressure roller 334. The driving device is fixed to the sliding shaft 333 through an angle plate, and the output end of the driving device is connected to a driving bevel gear, which is meshed with the annular conical tooth of the conical pressure roller 334. The conical pressure roller 334 can be driven to rotate by the driving device. Furthermore, a support rod 34 is provided on one side of the inclined slide rail 32, and the bottom end of the support rod 34 is mounted on the table 11. The bearing shaft 331 is located on both sides of the annular pressure roller 332 and is sleeved with support rings 336. Two telescopic rods 337 are provided between the support rod 34 and the support ring 336. One end of the telescopic rod 337 is connected to the support rod 34, and the other end of the telescopic rod 337 is connected to the support ring 336. A baffle is provided on one side of the telescopic rod 337 close to the support ring 336. The telescopic rod 337 is located between the baffle and the support rod 34 and is sleeved with a second spring 338. Specifically, a V-shaped inclined surface is formed between the two inclined slide rails 32 of the ring expansion mechanism 2. When the rolling member 33 slides along the inclined slide rail 32 and moves away from the ring expansion mechanism 2, the two conical pressing rollers 334 of the rolling member 33 approach each other, and the conical pressing rollers 334 are used to roll the ring blank to a desired thickness.

[0025] The method for using the downward pressure T-type wind turbine flange ring rolling device of the present invention comprises the following steps: S1, loading stage: the ring blank is placed on the roller 4, and the two rotating shafts 223 of the ring expansion mechanism 2 are placed on the inner side of the ring blank; S2, ring expansion stage: start the motor 24, so that the output shaft of the motor 24 drives the bidirectional screw 23 to rotate, and the two sliders 221 on the bidirectional screw 23 slide in different directions along the linear guide rail 21, and the movement of the slider 221 drives the support 222 and the rotating shaft 223 to move; S3. When the bidirectional screw 23 rotates, it also drives the active spur gear 27, the driven spur gear 26 and the transmission shaft 25 to rotate, and the active bevel gear 226, the driven bevel gear 225, the connecting shaft 224 and the rotating shaft 223 to rotate through the transmission shaft 25. When the slider 221 moves, the active bevel gear 226 slides and rotates along the transmission shaft 25, so that the two rotating shafts 223 rotate and gradually expand outward, and the ring embryo is driven to rotate and expand through the rotating shaft 223; S4, ring rolling stage, the ring blank is gradually expanded by the ring expansion mechanism 2. When the ring blank is expanded, the outer side of the ring blank pushes the annular pressing roller 332, the bearing shaft 331 and the support ring 336 to move, and the annular pressing roller 332 rotates with the ring blank, and pushes the sliding shaft 333 to slide along the inclined slide rail 32 through the bearing shaft 331. The two ends of the bearing shaft 331 gradually penetrate into the piston groove 335 of the sliding shaft 333, and push the telescopic rod 337 to contract and compress the second spring 338 through the bearing shaft 331, and the two conical pressing rollers 334 approach each other and roll the ring blank; S5. When the slider 221 moves to the outermost side of the bidirectional screw 23, the limit pin 231 on the bidirectional screw 23 is screwed into the collar 227 of the slider 221, and the limit pin 231 enters the annular groove along the spiral groove of the collar 227 and rotates. At this time, the slider 221 is disengaged from the thread of the bidirectional screw 23, and one end of the collar 227 pushes the ring plate 232 to move and compress the first spring 233, so that the slider 221 stops moving, and the bidirectional screw 23 continues to rotate and drives the rotating shaft 223 to rotate, and the ring blank is continuously rolled to a desired thickness. S6, material taking stage: the motor 24 is stopped, the ring blank is stopped from rotating and taken out, at this time, the ring blank no longer contacts the annular pressing roller 332, the second spring 338 is stretched and pushes the support ring 336 and the bearing shaft 331 to move through the telescopic rod 337, the roller pressing member 33 is reset, the motor 24 is reversed, the output shaft of the motor 24 drives the bidirectional screw 23 to reverse, under the thrust of the first spring 233 and the ring plate 232, the limit pin 231 of the bidirectional screw 23 enters the spiral groove from the annular groove of the ring plate 232, until the limit pin 231 moves out of the ring plate 232, the slider 221 re-matches with the thread of the bidirectional screw 23, the bidirectional screw 23 continues to reverse until the expansion member 22 is reset, and the motor 24 is stopped again.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A downward pressure T-type wind turbine flange ring rolling device, characterized in that: include, A processing table (1) comprises a table plate (11) and a bracket (12) arranged on the bottom side of the table plate (11); A ring expansion mechanism (2) is arranged at the middle of the top side of the table (11), the ring expansion mechanism (2) comprises a linear slide rail (21), two expansion members (22) slidably arranged on the linear slide rail (21), a bidirectional screw rod (23) arranged above the linear slide rail (21), and a motor (24) arranged on one side of the linear slide rail (21), the bidirectional screw rod (23) passes through the two expansion members (22) and is threadedly connected thereto, and the output end of the motor (24) is connected to one end of the bidirectional screw rod (23); The ring rolling mechanism (3) is symmetrically arranged in two groups, the ring rolling mechanism (3) is arranged on the table (11) and is located on both sides of the ring expanding mechanism (2), the ring rolling mechanism (3) comprises a bearing frame (31), two symmetrically arranged inclined slide rails (32) and a rolling member (33) slidably arranged between the two inclined slide rails (32), the inclined slide rail (32) above the rolling member (33) is mounted on the bearing frame (31), and the inclined slide rail (32) below the rolling member (33) is mounted on the table (11); Rollers (4) are arranged in a circular pattern on the platform (11), and four groups of rollers (4) are arranged and distributed between the ring expanding mechanism (2) and the ring rolling mechanism (3).

2. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 1 is characterized in that: The expansion member (22) comprises a slider (221), a pillar (222) arranged on the top of the slider (221), and a rotating shaft (223) arranged on the top of the pillar (222); the slider (221) is slidably arranged on the linear slide rail (21) and is threadedly connected to the bidirectional screw (23).

3. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 2 is characterized in that: The ring expansion mechanism (2) further comprises a transmission shaft (25) arranged above the bidirectional screw (23) and driven spur gears (26) arranged at both ends of the transmission shaft (25); the bidirectional screw (23) is provided with driving spur gears (27) below the two driven spur gears (26) of the transmission shaft (25); the driving spur gears (27) of the bidirectional screw (23) are meshed with the driven spur gears (26) of the transmission shaft (25); support blocks (28) are provided on both sides of the top of the linear slide rail (21); the bidirectional screw (23) and the transmission shaft (25) are both interlaced on the support blocks (28).

4. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 3 is characterized in that: A slot is provided at the top of the pillar (222), a cavity is provided at the bottom of the pillar (222), a connecting shaft (224) is interspersed between the slot and the cavity of the pillar (222), the rotating shaft (223) is inserted into the slot of the pillar (222) and connected to the top of the connecting shaft (224), a driven bevel gear (225) is provided at the bottom end of the connecting shaft (224), a driving bevel gear (226) is further provided in the cavity of the pillar (222), the driving bevel gear (226) is meshed with the driven bevel gear (225) and is located on one side thereof, the transmission shaft (25) passes through the pillar (222), and the driving bevel gear (226) is interspersed on the transmission shaft (25).

5. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 4 is characterized in that: The transmission shaft (25) is provided with spline teeth, a spline groove is provided in the middle of the active bevel gear (226), the transmission shaft (25) is inserted into the spline groove of the active bevel gear (226), and circular holes are provided on both sides of the pillar (222), and the inner diameter of the circular hole matches the outer diameter of the spline teeth of the transmission shaft (25).

6. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 5 is characterized in that: A collar (227) is provided on one side of the slider (221), and the collars (227) of the two sliders (221) on the linear slide rail (21) are symmetrically arranged. The collar (227) is sleeved on the outside of the bidirectional screw (23), and a spiral groove is provided on the inner wall of the collar (227) away from the slider (221), and an annular groove is provided on the inner wall of the collar (227) close to the slider (221), and the annular groove is communicated with one end of the spiral groove; Limit pins (231) are also provided on both sides of the bidirectional screw (23); an annular plate (232) is sleeved on the outer sides of the two limit pins (231) of the bidirectional screw (23); a first spring (233) is connected between the annular plate (232) and the support block (28); the first spring (233) is sleeved on the outside of the bidirectional screw (23).

7. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 1 or 6, characterized in that: The rolling element (33) comprises a bearing shaft (331), an annular pressing roller (332) rotatably arranged in the middle of the bearing shaft (331), and a sliding shaft (333) and a conical pressing roller (334) symmetrically arranged at both ends of the bearing shaft (331); One end of the sliding shaft (333) is slidably arranged on the inclined sliding rail (32), the other end of the sliding shaft (333) is provided with a piston groove (335), both ends of the bearing shaft (331) are inserted into the piston groove (335) of the sliding shaft (333), and the conical pressure roller (334) is rotatably arranged on one side of the sliding shaft (333).

8. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 7 is characterized in that: A support rod (34) is provided on one side of the inclined slide rail (32), the bottom end of the support rod (34) is mounted on the table (11), the bearing shaft (331) is located on both sides of the annular pressure roller (332) and is sleeved with support rings (336), two telescopic rods (337) are provided between the support rod (34) and the support ring (336), one end of the telescopic rod (337) is connected to the support rod (34), and the other end of the telescopic rod (337) is connected to the support ring (336), a baffle is provided on one side of the telescopic rod (337) close to the support ring (336), and a second spring (338) is sleeved on the telescopic rod (337) located between the baffle and the support rod (34).

9. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 8 is characterized in that: A V-shaped inclined surface is formed between the two inclined slide rails (32) of the ring expansion mechanism (2); when the rolling member (33) slides along the inclined slide rail (32) and moves away from the ring expansion mechanism (2), the two conical pressing rollers (334) of the rolling member (33) approach each other.

10. The method for using the downward-pressed T-shaped wind turbine flange ring rolling device according to any one of claims 1 to 9 is characterized in that: The following steps are involved: S1, loading stage: placing the ring blank on the roller (4), and placing the two rotating shafts (223) of the ring expansion mechanism (2) on the inner side of the ring blank; S2, ring expansion stage: start the motor (24), so that the output shaft of the motor (24) drives the bidirectional screw (23) to rotate, and the two sliders (221) on the bidirectional screw (23) slide in different directions along the linear guide rail (21), and the movement of the slider (221) drives the support (222) and the rotating shaft (223) to move; S3, when the bidirectional screw (23) rotates, it also drives the active spur gear (27), the driven spur gear (26) and the transmission shaft (25) to rotate, and the active bevel gear (226), the driven bevel gear (225), the connecting shaft (224) and the rotating shaft (223) to rotate through the transmission shaft (25); when the slider (221) moves, the active bevel gear (226) slides and rotates along the transmission shaft (25), causing the two rotating shafts (223) to rotate and gradually expand outward, and the ring embryo is driven to rotate and expand through the rotating shaft (223); S4, ring rolling stage, the ring blank is gradually expanded through the ring expansion mechanism (2), when the ring blank is expanded, the outer side of the ring blank pushes the annular pressure roller (332), the bearing shaft (331) and the support ring (336) to move, the annular pressure roller (332) rotates with the ring blank, and pushes the sliding shaft (333) to slide along the inclined slide rail (32) through the bearing shaft (331), the two ends of the bearing shaft (331) gradually penetrate into the piston groove (335) of the sliding shaft (333), and pushes the telescopic rod (337) to contract and compress the second spring (338) through the bearing shaft (331), and the two conical pressure rollers (334) approach each other and roll the ring blank; S5. When the slider (221) moves to the outermost side of the bidirectional screw (23), the stop pin (231) on the bidirectional screw (23) is screwed into the collar (227) of the slider (221). The stop pin (231) enters the annular groove along the spiral groove of the collar (227) and rotates. At this time, the slider (221) is disengaged from the thread of the bidirectional screw (23). One end of the collar (227) pushes the ring plate (232) to move and compress the first spring (233), so that the slider (221) no longer moves. The bidirectional screw (23) continues to rotate and drives the rotating shaft (223) to rotate, and the ring blank is continuously rolled to a desired thickness. S6, material removal stage: the motor (24) is stopped so that the ring embryo no longer rotates and is removed. At this time, the ring embryo no longer contacts the annular pressure roller (332), so that the second spring (338) is stretched and pushes the support ring (336) and the bearing shaft (331) to move through the telescopic rod (337), so that the roller pressing member (33) is reset, and then the motor (24) is reversed so that the output shaft of the motor (24) drives the bidirectional screw (23) to reverse. Under the thrust of the first spring (233) and the ring plate (232), the stop pin (231) of the bidirectional screw (23) enters the spiral groove from the annular groove of the ring plate (232) until the stop pin (231) moves out of the ring plate (232), the slider (221) re-matches with the thread of the bidirectional screw (23), and the bidirectional screw (23) continues to reverse until the expansion member (22) is reset, and then the motor (24) is stopped.

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