A down-pressing T-shaped wind power flange ring rolling device and its usage method

Abstract

The present invention discloses a down-pressing T-shaped wind power flange ring rolling device and a using method thereof. The device includes a processing table, which includes a table board and a bracket arranged on the bottom side of the table board; a ring expanding mechanism arranged in the middle of the top side of the table board, a ring rolling mechanism, with two groups symmetrically arranged, the ring rolling mechanism is arranged on the table board and on both sides of the ring expanding mechanism, and rollers are annularly arranged on the table board. The present invention is provided with a ring expanding mechanism. By driving two rotating shafts to expand outwards while rotating through a driving device, the ring expanding processing of the ring blank is realized. Moreover, during the ring expanding process of the ring blank, the pushing force during the expansion of the ring blank is used to push the roller pressing part to move, so that the two conical rollers of the roller pressing part approach each other to roll the ring blank, and the ring blank is rolled into the required thickness. The ring rolling device has a simple structure and a small size, reduces the occupied space and is convenient for flexible use. Moreover, the number of driving devices of the device is small, which reduces the energy consumption and improves the practicability of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power flanges, and particularly to a down-pressing T-shaped wind power flange ring rolling device and a using method thereof. Background Art

[0002] Wind power generation refers to converting the kinetic energy of wind into electrical energy. Wind energy is a clean and pollution-free renewable energy source that has been utilized by people for a long time. It is mainly used for pumping water and grinding flour through windmills. What people are interested in is how to use wind to generate electricity. Utilizing wind power generation is very environmentally friendly, and the wind energy reserve is huge. Therefore, it has been increasingly emphasized by countries around the world. Simply speaking, a wind power flange is a flange of a wind power generation unit, and a wind power flange is also called a wind tower flange. A T-shaped wind power flange means that the cross-section of the wind power flange is in a T shape. The ring blank processing of a T-shaped wind power flange can be processed and formed by a ring rolling machine. Ring rolling is a plastic processing technology that uses a ring rolling machine to cause continuous local plastic deformation of the ring blank, thereby achieving wall thickness reduction, diameter expansion, and cross-section profile forming.

[0003] The existing ring rolling machines have complex structures and large sizes, and are composed of multiple groups of motors, hydraulic rods, and cylinders. When processing a ring blank, multiple groups of driving devices need to cooperate to carry out the processing, resulting in large energy consumption and occupied space of the ring rolling machine, which is not conducive to the flexible use of the equipment. Therefore, the present invention proposes a down-pressing T-shaped wind power flange ring rolling device and a using method thereof to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a down-pressing T-shaped wind power flange ring rolling device and a using method thereof to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A down-pressing T-shaped wind power flange ring rolling device, including a processing table, which includes a table board and a bracket arranged on the bottom side of the table board;

[0006] A ring expanding mechanism is arranged in the middle of the top side of the table board. The ring expanding mechanism includes a linear slide rail, two expanding parts slidably arranged on the linear slide rail, a bidirectional screw arranged above the linear slide rail, and a motor arranged on one side of the linear slide rail. The bidirectional screw penetrates through the two expanding parts and is threadedly connected to them. The output end of the motor is connected to one end of the bidirectional screw;

[0007] Two groups of ring rolling mechanisms are symmetrically arranged. The ring rolling mechanisms are arranged on the table board and on both sides of the ring expanding mechanism. Each ring rolling mechanism includes a bearing frame, two symmetrically arranged inclined slide rails, and a rolling pressing part slidably arranged between the two inclined slide rails. The inclined slide rail above the rolling pressing part is installed on the bearing frame, and the inclined slide rail below the rolling pressing part is installed on the table board;

[0008] Rollers are arranged in a circular pattern on the platen, and four groups of rollers are provided between the ring-expanding mechanism and the ring-rolling mechanism.

[0009] As a preferred embodiment of the present invention, the expansion member includes a slider, a pillar provided on the top of the slider, and a rotating shaft provided on the top of the pillar. The slider is slidably arranged on the linear slide rail and is threadedly connected to the bidirectional screw.

[0010] As a preferred embodiment of the present invention, the ring-expanding mechanism further includes a transmission shaft provided above the bidirectional screw and driven spur gears provided at both ends of the transmission shaft. Active spur gears are provided below the two driven spur gears of the transmission shaft on both sides of the bidirectional screw. The active spur gear of the bidirectional screw meshes with the driven spur gear of the transmission shaft. Support blocks are provided on both sides of the top of the linear slide rail. The bidirectional screw and the transmission shaft are both inserted through the support blocks.

[0011] As a preferred embodiment of the present invention, a slot is provided at the top of the pillar, and a cavity is provided at the bottom of the pillar. A connecting shaft is inserted between the slot and the cavity of the pillar. The rotating shaft is inserted into the slot of the pillar and is connected to the top end of the connecting shaft. A driven bevel gear is provided at the bottom end of the connecting shaft. An active bevel gear is further provided in the cavity of the pillar. The active bevel gear meshes with the driven bevel gear and is located on one side thereof. The transmission shaft penetrates through the pillar, and the active bevel gear is inserted through the transmission shaft.

[0012] As a preferred embodiment of the present invention, spline teeth are provided on the transmission shaft, 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 holes matches the outer diameter of the spline teeth of the transmission shaft.

[0013] As a preferred embodiment 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 outside the bidirectional screw. A spiral groove is provided on the inner wall of the side of the collar away from the slider, and an annular groove is provided on the inner wall of the side of the collar close to the slider. The annular groove communicates with one end of the spiral groove;

[0014] Limit pins are further provided on both sides of the bidirectional screw. Ring plates are sleeved outside the bidirectional screw on both sides of the two limit pins. A first spring is connected between the ring plate and the support block. The first spring is sleeved outside the bidirectional screw.

[0015] As a preferred embodiment of the present invention, wherein: the rolling member includes a bearing shaft, an annular pressing roller rotatably arranged in the middle of the bearing shaft, and sliding shafts and conical pressing rollers symmetrically arranged at both ends of the bearing shaft;

[0016] One end of the sliding shaft is slidably arranged on the inclined slide rail, the other end of the sliding shaft is provided with a piston groove, both ends of the bearing shaft are inserted into the piston groove of the sliding shaft, and the conical pressing roller is rotatably arranged on one side of the sliding shaft.

[0017] As a preferred embodiment of the present invention, wherein: a support rod is arranged on one side of the inclined slide rail, the bottom end of the support rod is installed on the table board, support rings are sleeved on both sides of the bearing shaft where the annular pressing roller is located, two telescopic rods are arranged between the support rod and the support ring, one end of the telescopic rod is connected to the support rod, the other end of the telescopic rod is connected to the support ring, a baffle is arranged on the side of the telescopic rod close to the support ring, and a second spring is sleeved between the baffle and the support rod on the telescopic rod.

[0018] As a preferred embodiment of the present invention, wherein: a V-shaped inclined plane is formed between the two inclined slide rails of the ring rolling mechanism. When the rolling member slides along the inclined slide rail and moves away from the ring expanding mechanism, the two conical pressing rollers of the rolling member approach each other.

[0019] A use method of a downward-pressing T-shaped wind power flange ring rolling device includes the following steps:

[0020] S1. Feeding stage: Place the ring blank on the roller, and place the two rotating shafts of the ring expanding mechanism inside the ring blank;

[0021] S2. Ring expanding 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 slide rail. While the sliders move, they drive the struts and the rotating shafts to move;

[0022] S3. When the bidirectional screw rotates, it also drives the driving spur gear, the driven spur gear and the transmission shaft to rotate. Through the transmission shaft, it drives the driving bevel gear, the driven bevel gear, the connecting shaft and the rotating shaft to rotate. When the slider moves, the driving bevel gear slides and rotates along the transmission shaft, so that the two rotating shafts rotate and gradually expand outwards. The ring blank is driven to rotate and expand through the rotating shafts;

[0023] S4. Ring rolling stage: The ring blank is gradually expanded through the processing of the ring expanding mechanism. When the ring blank expands, the outer side of the ring blank pushes the annular pressing roller, the bearing shaft and the support ring to move. The annular pressing roller rotates following the ring blank. The sliding shaft is pushed along the inclined slide rail through the bearing shaft. Both ends of the bearing shaft gradually penetrate into the piston groove of the sliding shaft. The telescopic rod is pushed by the bearing shaft to contract and compress the second spring. The two conical pressing rollers approach each other and roll the ring blank;

[0024] S5. When the slider moves to the outermost side of the bidirectional screw, the limit pin on the bidirectional screw screws into the collar of the slider. The limit pin enters the annular groove along the spiral groove of the collar and rotates. At this time, the slider disengages from the thread of the bidirectional screw. One end of the collar pushes the ring plate to move and compress the first spring, so that the slider stops moving. The bidirectional screw continues to rotate and drives the rotating shaft to rotate, continuously roll-pressing the ring blank until the ring blank is rolled into the required thickness;

[0025] S6. Feeding stage: Stop the motor, so that the ring blank stops rotating and is taken out. At this time, the ring blank no longer abuts against the annular pressing roller, so that the second spring extends and pushes the support ring and the bearing shaft to move through the telescopic rod, resetting the rolling member. Then reverse 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 collar until the limit pin moves out of the collar. The slider is re-mated with the thread of the bidirectional screw. The bidirectional screw continues to reverse until the expanding member is reset, and then stop the motor.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] The present invention is provided with a ring expanding mechanism. By driving two rotating shafts to expand outward while rotating through one driving device, the ring expanding processing of the ring blank is realized. Moreover, during the ring expanding process of the ring blank, the rolling member is pushed to move by the thrust when the ring blank expands, so that the two conical pressing rollers of the rolling member approach each other to roll-press the ring blank until the ring blank is rolled into the required thickness. The ring rolling device has a simple structure and a small size, reduces the floor space and is convenient for flexible use. Moreover, the number of driving devices of the device is small, reducing the energy consumption and improving the practicability of the device. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the present invention when expanding the ring blank;

[0029] Figure 2 It is a schematic structural diagram of the present invention when rolling the ring blank;

[0030] Figure 3 It is a schematic structural diagram of the ring expanding mechanism of the present invention;

[0031] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in;

[0032] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in;

[0033] Figure 6 It is a schematic structural diagram of the ring rolling mechanism of the present invention;

[0034] Figure 7 This is a schematic structural diagram when the limit pin of the bidirectional screw of the present invention is screwed into the collar.

[0035] In the figure: 1, processing table; 11, table board; 12, support; 2, ring expanding mechanism; 21, linear slide rail; 22, expanding member; 221, slider; 222, support pillar; 223, rotating shaft; 224, connecting shaft; 225, driven bevel gear; 226, driving bevel gear; 227, collar; 23, bidirectional screw; 231, limit pin; 232, ring plate; 233, first spring; 24, motor; 25, transmission shaft; 26, driven spur gear; 27, driving spur gear; 28, support block; 3, ring rolling mechanism; 31, bearing frame; 32, inclined slide rail; 33, rolling member; 331, bearing shaft; 332, annular rolling roller; 333, sliding shaft; 334, conical rolling roller; 335, piston groove; 336, support ring; 337, telescopic rod; 338, second spring; 34, support rod; 4, roller. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1-7 , a down-pressing T-shaped wind power flange ring rolling device, including a processing table 1, including a table board 11 and a support 12 arranged on the bottom side of the table board 11;

[0038] A ring expanding mechanism 2, arranged in the middle of the top side of the table board 11. The ring expanding mechanism 2 includes a linear slide rail 21, two expanding members 22 slidably arranged on the linear slide rail 21, a bidirectional screw 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 23 penetrates through the two expanding members 22 and is threadedly connected thereto. The output end of the motor 24 is connected to one end of the bidirectional screw 23;

[0039] A ring rolling mechanism 3, symmetrically arranged in two groups. The ring rolling mechanism 3 is arranged on the table board 11 and 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 board 11;

[0040] Rollers 4, annularly arranged on the table board 11, and four groups of rollers 4 are arranged between the ring expanding mechanism 2 and the ring rolling mechanism 3;

[0041] It should be noted that vertical plates are inserted through both ends of the roller 4, and the roller 4 is installed on the table plate 11 through the vertical plates. The two rollers 4 located on both sides of the ring expanding mechanism 2 are symmetrically arranged, and the minimum included angle between the two rollers 4 is 60 degrees and the maximum included angle is 120 degrees.

[0042] In this embodiment, the expanding member 22 includes a slider 221, a support column 222 provided on the top of the slider 221, and a rotating shaft 223 provided on the top of the support column 222. The slider 221 is slidably arranged on the linear slide rail 21 and is threadedly connected to the bidirectional screw 23;

[0043] It should be noted that two sections of opposite external threads are provided on the bidirectional screw 23, and threaded holes matching the external threads of the bidirectional screw 23 are provided on the two sliders 221. The slider 221 is threadedly connected to the bidirectional screw 23 through thread fit. When the bidirectional screw 23 rotates, the slider 221 can move in opposite directions along the bidirectional screw 23.

[0044] In this embodiment, the ring expanding mechanism 2 further includes a transmission shaft 25 provided above the bidirectional screw 23 and driven spur gears 26 provided at both ends of the transmission shaft 25. Driving spur gears 27 are provided below the two driven spur gears 26 of the transmission shaft 25 on the bidirectional screw 23. The driving spur gear 27 of the bidirectional screw 23 meshes 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. The bidirectional screw 23 and the transmission shaft 25 are both inserted through the support blocks 28.

[0045] In this embodiment, a slot is provided at the top of the support column 222, a cavity is provided at the bottom of the support column 222, a connecting shaft 224 is inserted between the slot and the cavity of the support column 222, the rotating shaft 223 is inserted into the slot of the support column 222 and is connected to the top end 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 support column 222. The driving bevel gear 226 meshes with the driven bevel gear 225 and is located on one side of it. The transmission shaft 25 penetrates through the support column 222, and the driving bevel gear 226 is inserted through the transmission shaft 25;

[0046] It should be noted that the driving bevel gears 226 in the two support columns 222 are located on the same side of the driven bevel gear 225, so that the rotation directions of the driven bevel gears 225 and the rotating shafts 223 of the two expanding members 22 are the same;

[0047] Specifically, spline teeth are provided on the transmission shaft 25, a spline groove is provided in the middle of the driving bevel gear 226, the transmission shaft 25 is inserted into the spline groove of the driving bevel gear 226, round holes are provided on both sides of the support column 222, and the inner diameter of the round hole matches the outer diameter of the spline teeth of the transmission shaft 25. When the transmission shaft 25 rotates and the expansion member 22 moves, the driving bevel gear 226 can slide along the transmission shaft 25 and rotate therewith.

[0048] 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 slide rail 21 are symmetrically arranged. The collar 227 is sleeved outside the bidirectional screw 23. A spiral groove is provided on the inner wall of the side of the collar 227 away from the slider 221, and an annular groove is provided on the inner wall of the side of the collar 227 close to the slider 221. The annular groove communicates with one end of the spiral groove.

[0049] Limit pins 231 are further provided on both sides of the bidirectional screw 23. Ring plates 232 are sleeved outside the bidirectional screw 23 on both sides of the two limit pins 231. A first spring 233 is connected between the ring plate 232 and the support block 28. The first spring 233 is sleeved outside the bidirectional screw 23.

[0050] 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 disengages from the thread of the bidirectional screw 23, so that the slider 221 no longer moves. The bidirectional screw 23 continues to rotate and drives the rotating shaft 223 to rotate, continuously rolling the ring blank.

[0051] 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 sliding shafts 333 and tapered pressing rollers 334 symmetrically arranged at both ends of the bearing shaft 331.

[0052] One end of the sliding shaft 333 is slidably arranged on the inclined slide rail 32. A piston groove 335 is provided at the other end of the sliding shaft 333. Both ends of the bearing shaft 331 are inserted into the piston groove 335 of the sliding shaft 333. The tapered pressing roller 334 is rotatably arranged on one side of the sliding shaft 333.

[0053] It should be noted that a round shaft is provided on one side of the sliding shaft 333, and the tapered pressing roller 334 is rotatably connected to the round shaft. If power needs to be provided to the tapered pressing roller 334, an annular bevel gear can be provided at the conical bottom of the tapered pressing roller 334, and a driving device can be provided on one side of the tapered pressing roller 334. The driving device is fixed on the sliding shaft 333 through an angled plate. The output end of the driving device is connected to a driving bevel gear, and the driving bevel gear meshes with the annular bevel gear of the tapered pressing roller 334. The tapered pressing roller 334 can be driven to rotate through the driving device.

[0054] Further, a support rod 34 is provided on one side of the inclined slide rail 32. The bottom end of the support rod 34 is installed on the table board 11. Support rings 336 are sleeved on both sides of the bearing shaft 331 located on both sides of the annular pressing roller 332. 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 the side of the telescopic rod 337 close to the support ring 336. A second spring 338 is sleeved between the baffle and the support rod 34 on the telescopic rod 337;

[0055] Specifically, a V-shaped inclined plane is formed between the two inclined slide rails 32 of the ring rolling mechanism 3. When the rolling member 33 slides along the inclined slide rail 32 and moves away from the ring expanding mechanism 2, the two conical pressing rollers 334 of the rolling member 33 approach each other, and the ring blank is rolled by the conical pressing rollers 334 to be rolled into a required thickness.

[0056] The usage method of the down-pressing T-shaped wind power flange ring rolling device of the present invention includes the following steps:

[0057] S1. Loading stage: Place the ring blank on the roller 4, and place the two rotating shafts 223 of the ring expanding mechanism 2 inside the ring blank;

[0058] S2. Ring expanding stage: Start the motor 24, so that the output shaft of the motor 24 drives the bidirectional screw 23 to rotate. The two sliders 221 on the bidirectional screw 23 slide in opposite directions along the linear slide rail 21. While the slider 221 moves, it drives the support column 222 and the rotating shaft 223 to move;

[0059] S3. When the bidirectional screw 23 rotates, it also drives the driving spur gear 27, the driven spur gear 26 and the transmission shaft 25 to rotate. The transmission shaft 25 drives the driving bevel gear 226, the driven bevel gear 225, the connecting shaft 224 and the rotating shaft 223 to rotate. When the slider 221 moves, the driving bevel gear 226 slides and rotates along the transmission shaft 25, so that the two rotating shafts 223 rotate and gradually expand outwards, and the ring blank is driven to rotate and expand by the rotating shaft 223;

[0060] S4. Ring rolling stage: The ring blank is gradually expanded by the ring expanding mechanism 2. When the ring blank expands, the outer side of the ring blank pushes the annular pressing roller 332, the bearing shaft 331 and the support ring 336 to move. The annular pressing roller 332 rotates following the ring blank. The bearing shaft 331 pushes the sliding shaft 333 to slide along the inclined slide rail 32. The two ends of the bearing shaft 331 gradually penetrate into the piston groove 335 of the sliding shaft 333. The bearing shaft 331 pushes the telescopic rod 337 to contract and compress the second spring 338. The two conical pressing rollers 334 approach each other and roll the ring blank;

[0061] 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. The limit pin 231 enters the annular groove and rotates along the spiral groove of the collar 227. At this time, the slider 221 disengages 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 stops moving. The bidirectional screw 23 continues to rotate and drives the rotating shaft 223 to rotate, continuously roll-pressing the ring blank until the ring blank is roll-pressed into the required thickness;

[0062] S6. Feeding stage: Stop the motor 24 to stop the rotation of the ring blank and take it out. At this time, the ring blank no longer abuts against the annular pressing roller 332, so that the second spring 338 extends and pushes the support ring 336 and the bearing shaft 331 to move through the telescopic rod 337, resetting the rolling member 33. Then reverse the motor 24 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 limit pin 231 of the bidirectional screw 23 enters the spiral groove from the annular groove of the collar 227 until the limit pin 231 moves out of the collar 227, and the slider 221 re-matches the thread of the bidirectional screw 23. The bidirectional screw 23 continues to reverse until the expansion member 22 is reset, and then stop the motor 24.

[0063] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

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 table (11), and four groups of rollers (4) are arranged and distributed between the ring expanding mechanism (2) and the ring rolling mechanism (3); 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); 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); support blocks (28) are provided on both sides of the top of the linear guide rail (21); a first spring (233) is connected between the annular plate (232) and the support block (28); and the first spring (233) is sleeved on the outside of the bidirectional screw (23); The two rotating shafts (223) are driven by a motor (24) to expand outwards while rotating.

2. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 1 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); and the bidirectional screw (23) and the transmission shaft (25) are both interlaced and arranged on the support block (28).

3. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 2 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).

4. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 3 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).

5. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 4 is 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).

6. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 5 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).

7. The downward-pressed T-shaped wind turbine flange ring rolling device according to claim 6 is characterized in that: A V-shaped inclined surface is formed between the two inclined slide rails (32) of the ring rolling mechanism (3); when the rolling member (33) slides along the inclined slide rail (32) and moves away from the ring expanding mechanism (2), the two conical pressing rollers (334) of the rolling member (33) approach each other.

8. The method for using the downward-pressed T-shaped wind turbine flange ring rolling device according to claim 7 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, the ring embryo is stopped from rotating 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, and 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 collar (227) until the stop pin (231) moves out of the collar (227), 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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