CN118775306A - New energy giant wind turbine - Google Patents

Abstract

The present invention discloses a new energy giant energy wind turbine, which relates to the field of wind turbines, including a casing, an impeller, a motor, and a connecting shaft connected to the output end of the motor, wherein the connecting shaft is connected to the impeller, and a bearing is arranged between the connecting shaft and the casing, wherein the bearing includes an inner ring and an outer ring, and balls are arranged rollingly between the inner ring and the outer ring; the outer ring is fixed to the casing, and a buffer assembly is arranged rotatingly between the inner ring and the connecting shaft. The new energy giant energy wind turbine provided by the present invention has a bearing arranged on the casing, and a buffer assembly is arranged between the bearing and the connecting shaft of the impeller, and the vibration generated when the impeller rotates or the motor is driven will be transmitted to the buffer assembly, which will cause the buffer assembly to rotate a short distance, and the vibration generated when the wind turbine is running can be buffered, thereby reducing the force on the bearing and increasing the service life of the bearing.

Description

New energy giant wind turbine

Technical Field

The present invention relates to the field of wind turbines, and in particular to a new energy giant wind turbine.

Background Art

As is known, centrifugal fans are based on the principle of converting kinetic energy into potential energy. They use a high-speed rotating impeller to accelerate the gas, then decelerate and change the flow direction, so that the kinetic energy is converted into potential energy (pressure). In a single-stage centrifugal fan, the gas flow direction is changed by the diffuser and the cross-sectional area of the pipeline is increased to decelerate the airflow. This deceleration effect converts kinetic energy into pressure energy. The air delivery of the fan can be increased by increasing the power of the driving source and other conditions. As the power increases, the appearance of the fan becomes larger and larger. In recent years, the impeller of the fan with higher power, called the giant energy motor, can reach a diameter of more than ten meters.

For example, the patent document with the authorization announcement number CN 104481899 B, the authorization date 2017.01.04, and the name "External rotor centrifugal fan using electromagnetic bearings" includes a volute, a centrifugal fan impeller and an external rotor motor, wherein the centrifugal fan impeller and the external rotor motor are placed in the volute, and the external rotor motor includes a casing, a first radial electromagnetic bearing, a second radial electromagnetic bearing, a permanent magnet, a motor stator core, an axial electromagnetic bearing, a stator shaft and a fixed plate, wherein the centrifugal fan impeller is fixed on the outer wall of the casing, and the first radial electromagnetic bearing, the second radial electromagnetic bearing, the permanent magnet, the motor stator core, the axial electromagnetic bearing and the stator shaft are placed in the casing. The centrifugal fan of the present invention can effectively avoid the occurrence of system resonance, so that the fan can run smoothly at all working speeds, and avoid the harm of resonance and damage caused by the traditional speed-controlled centrifugal fan at certain speeds.

The shortcoming of the existing technology is that the impeller of the centrifugal fan will produce continuous micro-vibration under the drive of the motor. Especially in recent years, with the commissioning of large-sized fans, the negative impact of micro-vibration on the motor shaft and the fan shaft is becoming increasingly greater. One of the negative effects of micro-vibration is that it will accelerate the wear of bearings and the frequency of replacement of accessories, thereby increasing the operating cost of the centrifugal fan.

Summary of the invention

The purpose of the present invention is to provide a new energy giant energy wind turbine to solve the above-mentioned deficiencies in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

A new energy giant energy wind turbine comprises a casing, an impeller, a motor and a connecting shaft connected to an output end of the motor, wherein the connecting shaft is connected to the impeller, and a bearing is arranged between the connecting shaft and the casing, wherein the bearing comprises an inner ring and an outer ring, and balls are arranged rollingly between the inner ring and the outer ring; the outer ring is fixed to the casing, and a buffer assembly is arranged rotatingly between the inner ring and the connecting shaft.

In the above-mentioned new energy giant wind turbine, the buffer assembly includes a movable ring, which is rotatably arranged on the inner wall of the inner ring, the connecting sleeve is arranged inside the movable ring, the outer wall of the movable ring is provided with a plurality of protrusions, and the inner wall of the inner ring is provided with a plurality of movable grooves adapted to the protrusions.

In the above-mentioned new energy giant energy wind turbine, the width of the movable groove is greater than the thickness of the protrusion.

In the above-mentioned new energy giant energy wind turbine, an elastic member is arranged between the protrusion and the movable groove.

In the above-mentioned new energy giant wind turbine, the elastic member includes a first spring and a lap plate, the lap plate is arranged in the movable groove through the first spring, and the lap plate is located on the movement stroke of the protrusion.

In the above-mentioned new energy giant wind turbine, the cross-section of the raised portion is "T"-shaped, the short side of the "T" is an arc-shaped square plate, and the inner side wall of the inner ring is provided with an arc-shaped groove adapted to the short side of the "T".

In the above-mentioned new energy giant wind turbine, the width of the arc-shaped groove is equal to the width of the arc-shaped square plate, and the length of the arc-shaped groove is greater than the length of the long side of the arc-shaped square plate.

In the above-mentioned new energy giant wind turbine, the cross-section of the raised portion is "T"-shaped, and the short side of the "T" is an arc-shaped circular plate. The inner side wall of the inner ring is provided with an arc-shaped groove adapted to the short side of the "T" shape. There are two raised portions, and they are arranged symmetrically about the central axis of the movable ring.

In the above-mentioned new energy giant wind turbine, the outer surface of the movable ring is an annular frustum.

In the above-mentioned new energy giant wind turbine, the width of the arc-shaped groove is equal to the diameter of the arc-shaped circular plate, and the length of the arc-shaped groove is greater than the diameter of the arc-shaped circular plate.

In the above technical scheme, the new energy giant energy wind turbine provided by the present invention is provided with a bearing on the casing, and a buffer assembly is provided between the bearing and the connecting shaft of the impeller. The vibration generated when the impeller rotates or the motor is driven will be transmitted to the buffer assembly, which will cause the buffer assembly to rotate a short distance, and can buffer the vibration generated when the wind turbine is running, thereby reducing the force on the bearing and increasing the service life of the bearing.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

FIG1 is a schematic diagram of an overall external structure provided by an embodiment of the present invention;

FIG2 is a schematic cross-sectional view of a bearing according to an embodiment of the present invention;

FIG3 is a schematic diagram of a bearing structure provided by another embodiment of the present invention;

FIG4 is a top cross-sectional view of a protrusion and an arc-shaped groove provided in another embodiment of the present invention;

FIG5 is a schematic diagram of a bearing structure provided by another embodiment of the present invention;

FIG6 is a schematic diagram of the overall structure of a movable ring provided by another embodiment of the present invention;

FIG7 is a schematic diagram of the overall structure of a movable ring provided by yet another embodiment of the present invention;

FIG8 is a schematic diagram of the overall structure of a movable ring provided by yet another embodiment of the present invention;

FIG9 is an enlarged schematic diagram of the local structure at point A in FIG2 ;

FIG10 is an enlarged schematic diagram of the local structure at B in FIG5;

FIG11 is a cross-sectional view of yet another embodiment of the present invention;

FIG. 12 is an enlarged schematic diagram of the local structure at point C in FIG. 11 .

Description of reference numerals:

1. Casing; 2. Motor; 3. Connecting shaft; 4. Bearing; 401. Inner ring; 402. Outer ring; 403. Ball; 5. Movable ring; 6. Raised portion; 601. Horizontal section; 602. Vertical section; 7. Movable groove; 8. First spring; 9. Lap plate; 10. Arc groove; 11. Mounting groove; 12. Lifting rod; 1201. Abutment portion; 13. Trigger rod; 14. Lifting groove; 15. Fixed shaft; 16. Slot; 17. Second spring; 18. Annular groove.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

1-12, a new energy giant wind turbine provided by an embodiment of the present invention comprises a casing 1, an impeller (not shown in the figure), a motor 2 and a connecting shaft 3 connected to the output end of the motor 2, wherein the connecting shaft 3 is connected to the impeller, and a bearing 4 is arranged between the connecting shaft 3 and the casing 1, wherein the bearing 4 comprises an inner ring 401 and an outer ring 402, and a ball 403 is arranged to roll between the inner ring 401 and the outer ring 402; the outer ring 402 is fixedly connected to the casing 1, and a buffer assembly is arranged to rotate between the inner ring 401 and the connecting shaft 3.

Specifically, the housing 1 is snail-shaped, and an air inlet and an air outlet are provided on the housing 1. The bearing 4 includes an inner ring 401 and an outer ring 402, and a ball 403 is provided between the inner ring 401 and the outer ring 402, so that the inner ring 401 and the outer ring 402 can rotate relative to each other. The connecting shaft 3 is fixed to the output end of the motor 2, and passes through the side wall of the housing 1 to be connected with the impeller. The bearing 4 is provided between the housing 1 and the connecting shaft 3. The impeller is driven to rotate at a high speed by the motor 2, so that the air entering from the air inlet can be accelerated and then discharged from the air outlet, thereby To achieve the effect of blowing, this is the prior art and will not be elaborated. One of the core innovations of the present invention is to provide a rotatably arranged buffer component. The buffer component can be a buffer layer (for example, a rubber layer) added between the connecting shaft 3 and the inner ring 401. The vibration generated when the impeller rotates or the motor 2 is driven will be transmitted to the buffer component. The buffer component can rotate slightly relative to the connecting shaft 3 while being squeezed, and can buffer the vibration generated when the fan is running, thereby reducing the force on the bearing 4 and increasing the service life of the bearing 4.

The rubber layer mentioned above cannot play a supporting role for the connecting shaft 3 in a strict sense, that is, it will cause the connecting shaft 3 to produce a slight radial movement, which is obviously not good for the connecting shaft 3 and even the fan. To solve the above problem, in a preferred embodiment provided by the present invention, the buffer assembly includes a movable ring 5, which is rotatably arranged on the inner wall of the inner ring 401, and the connecting shaft 3 is sleeved inside the movable ring 5. The outer wall of the movable ring 5 is provided with a plurality of protrusions 6, and the inner wall of the inner ring 401 is provided with a plurality of movable grooves 7 matched with the protrusions 6, and the width of the movable groove 7 is greater than the thickness of the protrusion 6; an elastic member is arranged between the protrusion 6 and the movable groove 7.

Specifically, the movable ring 5 is in the shape of a circular ring, which is fitted and connected with the inner wall of the inner ring 401. The protrusions 6 are in the shape of arc-shaped strips, which are arranged on the outer surface of the movable ring 5, and there are not less than two of them. Correspondingly, the movable grooves 7 are in the shape of strips adapted to the protrusions 6. The width of the movable grooves 7 is greater than the thickness of the protrusions 6, that is, both sides of the movable grooves 7 have avoidance space for the protrusions 6 to move. The length of the movable grooves 7 is equal to the length of the protrusions 6, so that the movable ring 5 and the inner ring 401 will not have axial relative movement. The elastic member can be an elastic rubber, which is arranged on the two side walls of the movable grooves 7 and is located on the clockwise and counterclockwise movement strokes of the protrusions 6. Correspondingly, the number of elastic rubbers is arranged about twice the number of protrusions 6. The effect of such a setting is that the benefits of setting the movable ring 5 are, firstly, the movable ring 5 is closely connected with the inner ring 401 so that there is no gap between the movable ring 5 and the inner ring 401, and the connecting shaft 3 is tightly sleeved inside the movable ring 5, so there is no radial slight movement between the connecting shaft 3 and the inner ring 401. Therefore, the movable ring 5 can play a good supporting effect on the connecting shaft 3. Secondly, when the connecting shaft 3 rotates normally, under the action of the elastic member, the protrusion 6 is located near the middle of the movable groove 7, or on the side of the elastic rubber close to the rotation direction of the connecting shaft 3. When the centrifugal fan vibrates during operation, the force generated by the vibration will be transmitted to the movable ring 5 via the connecting shaft 3, which will make the movable ring 5 move relative to the inner ring 401. Since elastic members are provided in both movement directions of the protrusion 6, the elastic members can play a good buffering effect on the protrusion 6 and the movable ring 5.

Furthermore, the protrusion 6 can play a connecting role, that is, through the connecting role of the protrusion 6 and the movable groove 7, the movable ring 5 and the inner ring 401 can be connected into a whole.

Preferably, the elastic member includes a first spring 8 and a lap plate 9, the lap plate 9 is arranged in the movable groove 7 through the first spring 8, and the lap plate 9 is located on the movement stroke of the protrusion 6. Specifically, the lap plate 9 is a long plate-like structure, and the two lap plates 9 are respectively located on both sides of the movement stroke of the protrusion 6, one end of the first spring 8 is fixed to the side wall of the movable groove 7, and the other end is fixed to the lap plate 9. The effect of such a setting is that when the connecting shaft 3 is in a stationary state, the protrusion 6 is located between the two lap plates 9. At this time, the first springs 8 on both sides of the protrusion 6 are in a compressed state to provide elastic force to the lap plate 9 and the protrusion 6, so that the protrusion 6 is always in the center position of the movable groove 7 when it is stationary, that is, the lap plates 9 on both sides play a role of flexible limiting on the protrusion 6, preventing the movable ring 5 and the inner ring 401 from rotating at will when the connecting shaft 3 is stationary, thereby increasing the stability of the bearing 4 when it is static.

As another preferred embodiment of the present invention, the cross-section of the raised portion 6 is "T"-shaped, the short side of the "T" shape, i.e. the horizontal section, is an arc-shaped square plate, and the inner wall of the inner ring 401 is provided with an arc-shaped groove 10 adapted to the short side of the "T" shape.

Specifically, the T-shaped or raised portion 6 includes a horizontal section 601 and a vertical section. The short side is the horizontal section 601, and the long side is the vertical section 602. The width of the arc groove 10 is equal to the width of the arc-shaped square plate, that is, the raised portion 6 will not slide along the axial direction of the movable ring 5. The length of the arc groove 10 is greater than the length of the long side of the arc-shaped square plate, that is, the arc groove 10 can provide a certain avoidance space, so that the horizontal section 601 can slide along the arc groove 10 for a distance, that is, the movable ring 5 and the inner ring 401 can rotate relative to each other by a certain angle. The purpose of such a setting is that the limiting effect of the horizontal section 601 and the arc groove 10 can further improve the stability of the connection between the movable ring 5 and the inner ring 401.

Furthermore, an elastic member may also be disposed between the horizontal section 601 and the arc-shaped groove 10, which may also buffer the force caused by vibration.

Furthermore, a sealed cavity may be provided between the horizontal section 601 and the arc-shaped groove 10 . When vibration occurs, the buffer cavity may buffer the force caused by the vibration.

When the bearing 4 is installed, there is an angular error (the angular error is generally 0-1°) caused by the installation error or shaft deflection between the connecting shaft 3 and the housing 1, thereby increasing the force borne by the connecting shaft 3. As another preferred embodiment of the present invention, the cross-section of the raised portion 6 is "T"-shaped, and the short side of the "T" is an arc-shaped circular plate. There are two raised portions 6, and they are symmetrically arranged about the central axis of the movable ring 5; the outer surface of the movable ring 5 is an annular frustum.

Specifically, the T-shaped horizontal section 601 of the raised portion 6 is an arc-shaped circular plate, the T-shaped vertical section 602 is a cylindrical rod-shaped structure, the corresponding lap plate 9 is a semicircular plate, the central axes of the two cylindrical rods are on the same straight line, the vertical section 602 is in the movable groove 7, and the horizontal section 601 is in the arc groove 10. The width of the arc groove 10 is equal to the diameter of the arc-shaped circular plate, that is, the raised portion 6 will not slide along the axial direction of the movable ring 5, and the length of the arc groove 10 is greater than the diameter of the arc-shaped circular plate, that is, the arc groove 10 can provide a certain avoidance space, so that the horizontal section 601 can slide along the arc groove 10 for a distance, and the outer surface of the movable ring 5 is connected by two rings with truncated cones on the outer surface (two The movable ring 5 is formed by connecting the bottom surfaces of two truncated cones together), that is, the outer surface of the movable ring 5 is inclined from the middle to the lower sides. The purpose of such a setting is that since there are two protrusions 6, and the vertical sections 602 of the two protrusions 6 are on the same central axis, and the truncated cone design of the outer surface of the movable ring 5, the advantage brought by this is that the movable ring 5 can rotate around the central axis of the horizontal section 601. When there is an angular error in the installation of the connecting shaft 3, the rotation angle of the movable ring 5 around the central axis of the horizontal section 601 can be adjusted to adapt to the specific angle (swinging with the vertical section 602 as the center) error during installation, so that the bearing 4 has both a buffering effect and a specific angle aligning effect.

As another embodiment of the present invention, under the premise that there are two protrusions 6 and they are symmetrically arranged about the center of the movable ring 5, the horizontal section 601 is Z-shaped, and the vertical section 602 is a cylindrical rod. Specifically, the cylindrical diameter of the vertical section 602 is equal to the width of the movable groove 7, so that the vertical section 602 and even the movable ring 5 will not slide axially relative to the inner ring 401, the maximum width of the Z-shape is less than or equal to the width of the arc groove 10, the longest length of the Z-shape is less than the length of the arc groove 10, and the longest length of the Z-shape is greater than the width of the arc groove 10, and the two horizontal sides of the Z-shape are both arc-shaped. The purpose of such a setting is that the movable ring 5 can rotate around the central axis of the two vertical sections 602, and when it rotates to the arc edge of the Z-shape abuts against the side wall of the arc groove 10, the movable ring 5 cannot continue to rotate, thereby preventing excessive rotation between the movable ring 5 and the inner ring 401.

Furthermore, by setting the Z-shaped arc edge to different curvatures, the maximum angle at which the movable ring 5 can rotate can be set to an appropriate value. That is, the larger the curvature of the arc edge, the farther its end is from the arc groove 10. At this time, the maximum angle at which the arc groove 10 can allow the horizontal section to rotate is also larger, and vice versa.

As another preferred embodiment of the present invention, the inner wall of the inner ring 401 is fitted and connected with the outer surface of the movable ring 5. The movable ring 5 is still in a frustum or arc shape so that it can rotate in the inner ring 401 when the external force is large. A mounting groove 11 is provided inside the inner ring 401. A deviation alarm component is provided in the mounting groove 11. The deviation alarm component includes a lifting rod 12 and a trigger rod 13. A lifting groove 14 is also provided inside the inner ring 401. The lifting rod 12 is elastically connected to the lifting groove 14. Abutment portions 1201 are provided on both sides of the lifting rod 12. A fixed shaft 15 is fixedly connected to the side wall of the mounting groove 11. The trigger rod 13 is rotatably connected to the fixed shaft 15. One end of the trigger rod 13 abuts against the abutment portion 1201, and there is a gap between the other end and the ball 403. A card slot 16 is provided on the outer wall of the movable ring 5. Specifically, the appearance of the movable ring 5 The surface is an arcuate surface, and correspondingly, the inner side wall of the inner ring 401 is also an arcuate surface adapted to the outer surface of the movable ring 5, that is, the movable ring 5 can rotate at any angle in the radial direction of the inner ring. The cross-section of the lifting rod 12 is cross-shaped, and the short sides on both sides are abutment portions 1201. The elastic connection, that is, a second spring 17 is arranged between the lifting rod 12 and the lifting slot 14, one end of the second spring 17 is fixedly connected to the inner top wall of the lifting slot 14, and the other end is fixedly connected to the lifting rod 12. The trigger rod 13 is L-shaped, and one end of the L-shaped is located on the side of the abutment portion 1201 close to the center of the movable ring 5, and there is a gap between the other end and the ball 403, and the two ends can swing around the fixed shaft 15, and a torsion spring can be arranged between the fixed shaft 15 and the trigger rod 13 (the elastic force of the torsion spring is less than the elastic force of the second spring 17, not shown in the figure), so that one end of the trigger rod 13 is always in abutment with the abutment portion 1201, and the slot 16 is provided with multiple The second spring 17 is in a compressed state, and the second spring 17 always provides a force for the lifting rod 12 toward the center of the movable ring 5. When the connecting shaft 3 is installed tilted or bent, the movable ring 5 and the inner ring 401 will produce relative rotation in the vertical direction. When the lifting rod 12 and the slot 16 are located on the same circular surface, that is, the slot 16 is located on the movement stroke of the lifting rod 12 at this time, when the lifting rod 12 passes through the slot 16, the elasticity of the second spring 17 is released, so that the lifting rod 12 is inserted into the slot 16. The advantages brought about by this are, first, when the end of the lifting rod 12 is inserted into the slot 16 (this is the maximum offset between the movable ring 5 and the inner ring 401), the lifting rod 12 and the inner ring 401 are in a compressed state. When the lifting rod 12 and the inner ring 401 are installed tilted or bent, the movable ring 5 and the inner ring 401 will produce relative rotation in the vertical direction. Under the clamping action of the clamping groove 16, a limiting effect will be provided to the movable ring 5 and the inner ring 401 to avoid damage caused by excessive deviation of the movable ring 5 and the inner ring 401. Secondly, when the lifting rod 12 is inserted into the clamping groove 16, the abutting portion 1201 and one end of the trigger rod 13 will be squeezed, and this end will swing toward the center of the movable ring 5. At the same time, the other end of the trigger rod 13 will swing in the direction away from the center of the movable ring 5. During the swinging process of the trigger rod 13, it will collide with the ball 403, so that the bearing 4 cannot continue to rotate. This collision will emit a harsh alarm sound, which is used to remind the movable ring 5 that the deviation between the inner ring 401 is too large and the bearing 4 needs to be repaired or replaced. At this time, the ball 403, the trigger rod 13, the lifting rod 12, and the clamping groove 16 form a limiting structure that abuts in sequence, converting the rolling force of the ball into a limiting force, so that the inner ring 401 has an excellent limiting effect on the movable ring 5 in a short time.

Furthermore, the slot 16 can be set at any position on the outer surface of the movable ring 5 except the central circular surface, and the maximum offset between the movable ring 5 and the inner ring 401 can be set by the distance between the slot 16 and the central circular surface of the movable ring 5, that is, the larger the distance between the slot 16 and the central circular surface of the movable ring 5, the larger the set maximum offset, and vice versa.

Furthermore, an annular groove 18 is provided on the outer surface of the movable ring 5 and on the symmetrical center circular surface of the movable ring 5. In the initial state, the lifting rod 12 will extend into the annular groove 18, thereby limiting the movable ring 5 and the inner ring 401 in the initial state, and preventing the movable ring 5 and the inner ring 401 from swinging relative to each other under vibration. Only when the axis is offset will the lifting rod 12 be disengaged from the annular groove 18, and only at this time will the movable ring 5 and the inner ring 401 swing or rotate relative to each other.

The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims (10)

1. A new energy giant wind turbine, comprising a casing, an impeller, a motor and a connecting shaft connected to an output end of the motor, wherein the connecting shaft is connected to the impeller, and a bearing is arranged between the connecting shaft and the casing, wherein the bearing comprises an inner ring and an outer ring, and a ball is arranged rollingly between the inner ring and the outer ring; The outer ring is fixedly connected to the housing, and a buffer assembly is rotatably arranged between the inner ring and the connecting shaft. 2. The new energy giant energy wind turbine according to claim 1 is characterized in that the buffer assembly includes a movable ring, the movable ring is rotatably arranged on the inner wall of the inner ring, the connecting sleeve is arranged inside the movable ring, the outer side wall of the movable ring is provided with a plurality of protrusions, and the inner wall of the inner ring is provided with a plurality of movable grooves adapted to the protrusions. 3. The new energy giant wind turbine according to claim 2 is characterized in that the width of the movable groove is greater than the thickness of the protrusion. 4. The new energy giant energy wind turbine according to claim 2 is characterized in that an elastic member is provided between the protrusion and the movable groove. 5. The new energy giant wind turbine according to claim 4 is characterized in that the elastic member includes a first spring and a lap plate, the lap plate is arranged in the movable groove through the first spring, and the lap plate is located on the movement stroke of the protrusion. 6. The new energy giant wind turbine according to claim 2 is characterized in that the cross-section of the raised portion is "T"-shaped, the short side of the "T"-shaped is an arc-shaped square plate, and the inner side wall of the inner ring is provided with an arc-shaped groove that matches the short side of the "T"-shaped. 7. The new energy giant wind turbine according to claim 6 is characterized in that the width of the arc groove is equal to the width of the arc square plate, and the length of the arc groove is greater than the length of the long side of the arc square plate. 8. The new energy giant wind turbine according to claim 2 is characterized in that the cross-section of the raised portion is "T"-shaped, and the short side of the "T"-shaped is an arc-shaped circular plate, and the inner side wall of the inner ring is provided with an arc-shaped groove adapted to the short side of the "T"-shaped, and there are two raised portions, which are arranged symmetrically about the central axis of the movable ring. 9. The new energy giant wind turbine according to claim 8 is characterized in that the outer surface of the movable ring is an annular frustum. 10 . The new energy giant wind turbine according to claim 8 , characterized in that the width of the arc-shaped groove is equal to the diameter of the arc-shaped circular plate, and the length of the arc-shaped groove is greater than the diameter of the arc-shaped circular plate.