CN118268420A - Wind-powered electricity generation bearing ring internal expanding rounding mechanism - Google Patents

Abstract

The wind power bearing ring internal expanding rounding mechanism comprises a base, a workbench and an annular rotary table, wherein the rotary table is rotatably arranged on the workbench; the bottom of base or workstation is equipped with spindle motor, the tip of driving shaft is equipped with the driving gear that is located the revolving stage inside, be equipped with a plurality of eccentric gears along circumference on the workstation that is located the revolving stage inside, a plurality of direction slider, eccentric gear and driving gear meshing and eccentric gear are connected with the connecting rod through corresponding straight flute connecting rod, the connecting rod is along radial slip setting on corresponding direction slider and the tip that the connecting rod kept away from eccentric gear is equipped with the head that expands, a plurality of heads that expand horizontally expand in order to treat the repeated multiple shaping of circulation of corresponding position on the inner wall of inner expander, and the revolving stage rotates the back, a plurality of heads that expand horizontally expand can treat the repeated multiple shaping of circulation of each position on the inner wall of inner expander, thereby realize better inner expanding rounding effect, further improve the roundness precision of ring, reduce the influence of the inside residual stress of ring.

Description

Wind-powered electricity generation bearing ring internal expanding rounding mechanism

Technical Field

The invention belongs to the technical field of ring internal expanding devices, and particularly relates to an internal expanding rounding mechanism of a wind power bearing ring.

Background

Wind power is an important green energy source, and is one of new energy sources which are developed in China. Through the development of more than 30 years in the wind power industry in China, the global maximum wind power industry and market scale are formed, the overall technical level of the wind power generator set in China reaches the world advanced level, but the large-scale high-end wind power main bearing mainly depends on import, and the high-quality development and the international competitiveness of the wind power industry in China are seriously affected.

With the development of bearing industry in China for decades, an independent and complete industrial system is formed, and the bearing industry is large, and the manufacture of a large wind power main bearing is a difficult point of urgent breakthrough in our country. At present, for large bearing rings, the special-shaped cross-section ring is mainly subjected to hot rolling near net forming in our country to be processed and formed, but the interior of the hot-rolled ring is often stressed unevenly, and residual stress still exists, so that the roundness precision of the processed ring is low.

The invention patent with the bulletin number of CN216881131U discloses an internal expansion diameter-adjusting mechanism, which comprises a frustum and an expansion assembly arranged on a positioning plate in a sliding way, wherein the frustum is connected with the output end of an oil cylinder and is provided with an outer conical surface, the expansion assembly comprises an internal expansion sleeve and an external expansion sleeve which are connected through a groove and a convex edge, the internal expansion sleeve is provided with an inner conical surface, a guide sliding hole is circumferentially arranged on the positioning plate, a first long bolt is arranged below the frustum, the lower end of the first long bolt is positioned at the inner end of the guide sliding hole, a second long bolt is arranged below the internal expansion sleeve, the lower end of the second long bolt stretches into the outer end of the guide sliding hole, and a tension spring is arranged between the first long bolt and the second long bolt; when the oil cylinder acts, the frustum moves downwards, the expansion assembly is driven to expand along the radial direction through the cooperation of the outer conical surface and the inner conical surface, the expansion assembly slides to the inner wall of the outer expansion sleeve to prop against the bearing ring along the positioning plate so as to enable the bearing ring to become round, and the defect of the inner expansion diameter adjusting mechanism is that: (1) Because the relative positions of a plurality of outer expansion sleeves distributed along the circumferential direction and the inner wall of the bearing ring are kept unchanged, each outer expansion sleeve can only carry out repeated inner expansion shaping on the corresponding part on the inner wall of the bearing ring; (2) The cooperation of the outer conical surface and the inner conical surface only can realize the radial expansion of the expansion assembly, so that a reset structure consisting of parts such as a guide sliding hole, two long bolts, a tension spring for connecting the two long bolts and the like is required to be arranged, and the mechanism is complicated.

Disclosure of Invention

Aiming at the defects of the existing internal expansion diameter-adjusting mechanism, the invention aims to provide the internal expansion diameter-adjusting mechanism for the wind power bearing ring, which not only enables a plurality of expansion heads to circularly repeat internal expansion shaping on corresponding parts on the inner wall of the bearing ring, but also enables the relative positions of the expansion heads and the bearing ring to be changed, so that the plurality of expansion heads can circularly repeat internal expansion shaping on each part on the inner wall of the bearing ring in sequence, thereby better achieving the internal expansion effect, eliminating residual stress, improving the roundness precision of the processed bearing ring, and simultaneously removing a reset mechanism to simplify the mechanism.

The aim of the invention is realized by adopting the following technical scheme. The invention provides an internal expanding rounding mechanism of a wind power bearing ring, which comprises a base 1, a workbench 2 arranged above the base, and a rotary table 3 which is used for placing an internal expanding ring 4 and takes the shape of a ring, wherein the rotary table 3 is rotatably arranged on the workbench 2 and is connected with the output end of a driving mechanism arranged on the workbench; the bottom of the base or the workbench is provided with a spindle motor 5, an output shaft of the spindle motor 5 is mechanically connected with a driving shaft 6 penetrating through the workbench 2 along the vertical direction, the end part of the driving shaft is provided with a driving gear 7 positioned inside the rotary table, the workbench positioned inside the rotary table is uniformly provided with a plurality of eccentric gears 8 and a plurality of guide sliding blocks 9 along the circumferential direction, the eccentric gears are meshed with the driving gears and are connected with connecting rods 11 through corresponding straight-groove connecting rods 10, the connecting rods 11 are arranged on the corresponding guide sliding blocks 9 in a sliding manner along the radial direction, and the end part of each connecting rod far away from the eccentric gear is detachably connected with an expanding head 12.

By means of the technical scheme, the wind power bearing ring internal expanding rounding mechanism has the following effects:

(1) Through the transmission cooperation of the driving gear and the eccentric gear, under the limit of the guide sliding block, the plurality of connecting rods move synchronously along the radial direction, the plurality of expansion heads horizontally expand until the outer walls of the expansion heads prop against the inner wall of the ring part to be expanded, the plurality of expansion heads horizontally shrink after a period of time, one shaping action is completed, and at the moment, the plurality of expansion heads can carry out repeated shaping on the corresponding parts on the inner wall of the ring part to be expanded only by repeating the shaping action;

(2) The rotary table is driven to rotate on the workbench through the driving mechanism, so that the relative positions of the ring piece to be expanded and the plurality of expansion heads placed on the rotary table are changed, the shaping actions are repeated, the plurality of expansion heads shape different parts on the inner wall of the ring piece to be expanded, then the rotary table is rotated again, the shaping actions are repeated, and the plurality of expansion heads can shape each part on the inner wall of the ring piece to be expanded repeatedly in a circulating way, thereby realizing better internal expansion rounding effect, further improving roundness precision of the ring piece and reducing the influence of residual stress in the ring piece;

(3) The driving gear and the transmission gear are matched, so that the multiple expansion heads can automatically contract, and reset mechanisms such as springs are omitted;

(4) The radial movement of the connecting rod can drive the expansion head to expand or contract along the radial direction, so that the mechanism can be suitable for wind power bearing rings with different sizes.

In one embodiment, a plurality of balls are circumferentially arranged at intervals at the bottom of the rotary table 3, and a track groove for placing the balls is circumferentially arranged on the workbench 2 below the rotary table 3.

The effect is as follows: when the driving mechanism operates, the rotary table can be rotated more smoothly by the rolling fit of the balls and the track grooves.

In an embodiment, a fixed table 15 is arranged above the workbench inside the rotary table 3, the upper wall surface of the fixed table is slightly higher than the upper wall surface of the workbench, and the driving gear 7, the eccentric gear 8 and the guide sliding block 9 are all arranged on the upper wall surface of the fixed table.

The effect is as follows: through addding the fixed station, not only can make the size (especially the high size) miniaturization of parts such as driving gear, eccentric gear, direction slider, expanding head, improve the application scope of mechanism, be favorable to expanding head and placing the top tight fit of waiting interior expanding ring spare at the workstation upper wall moreover to improve interior bloated whole round effect.

In one embodiment, a baffle 301 is disposed at an outer edge of an upper wall surface of the turntable for placing the ring member to be expanded, and a slot 3011 is disposed on an outer wall surface of the baffle along a circumferential direction.

The effect is as follows: through the cooperation of draw-in groove and mechanical fixture, be favorable to waiting to interior expansion ring spare, the clamp of the ring spare that the whole circle accomplished is got, simultaneously through the thick location of fender platform, be convenient for the manipulator will wait to interior expansion ring spare place fast on being located the revolving stage upper wall surface of fender platform inboard.

In one embodiment, a dust cover is arranged above the driving gear, the eccentric gear, the straight groove connecting rod and the guide sliding block.

The effect is as follows: by means of the dust cover, dust and the like floating on a working site can be prevented from falling on the meshing part of the driving gear and the eccentric gear, the hinging part of the straight groove connecting rod and the connecting rod, the sliding fit part of the connecting rod and the guide sliding block and the like, so that the maintenance rate of the mechanism is reduced, and the service life of the mechanism is prolonged.

In an embodiment, the guide slider is arranged on the outer wall deviating from the driving gear and is provided with a limiting pin extending along the vertical direction, and the bottom of the dust cover is provided with a limiting hole for being in plug-in fit with the limiting pin.

The effect is as follows: through the grafting cooperation of spacer pin and spacing hole, convenient high-efficient with the dust cover setting in driving gear, eccentric gear, straight flute connecting rod, direction slider's top.

In one embodiment, a connecting post 801 extending in a vertical direction is disposed at the lower portion of the eccentric gear 8, and the connecting post 801 is inserted into the long groove 101 at one end of the straight groove connecting rod 10 to form a sliding fit, and the other end of the straight groove connecting rod 10 is hinged to the end of the connecting rod 11.

In one embodiment, the driving mechanism 14 is a worm driven by a motor, and the outer wall surface of the rotating table extending along the circumferential direction is provided with a plurality of teeth.

In an embodiment, an inserting groove is formed at the other end portion of the connecting rod far away from the driving gear, a limiting hole 1101 is formed in the connecting rod 11 surrounding the inserting groove in a penetrating manner, an inserting portion 1201 extending radially is formed in the inner wall surface of the expansion head 12, a through hole 1202 is formed in the inserting portion, and the connecting rod and the expansion head are detachably connected through the limiting hole and the through hole by inserting or extracting a limiting piece.

The effect is as follows: the expansion heads of different types are replaced by inserting or extracting the limiting piece into the limiting hole and the through hole, so that the mechanism can be suitable for various bearing rings, and the variety of applicable main bodies of the mechanism is further expanded.

In an embodiment, an adapting portion corresponding to an inner wall of the outer ring of the bearing is disposed on an outer wall surface of the expansion head 12.

The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention given in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a schematic perspective view of an internal expanding and rounding mechanism of a wind power bearing ring according to the embodiment.

Fig. 2 is a schematic top view of an inner expanding and rounding mechanism of a wind power bearing ring according to the embodiment.

FIG. 3 is a schematic cross-sectional view of A-A in FIG. 2.

Fig. 4 is a schematic diagram showing connection of the eccentric gear, the straight groove connecting rod and the connecting rod in the embodiment.

Fig. 5 is a schematic diagram illustrating connection between the connecting rod and the expansion head in the present embodiment.

Fig. 6A is a schematic diagram illustrating the matching of the expansion head and the outer ring of the deep groove ball bearing in the first embodiment.

Fig. 6B is a schematic diagram showing the fitting of the expansion head and the tapered roller bearing outer ring in the second embodiment.

Fig. 6C is a schematic diagram showing the fitting of the expansion head with the outer ring of the cylindrical roller bearing in the third embodiment.

Fig. 6D is a schematic diagram illustrating the fitting of the expansion joint and the outer ring of the angular contact ball bearing in the fourth embodiment.

[ Reference numerals ]

The device comprises a base, a 2-workbench, a 3-rotary table, a 301-baffle table, 3011-clamping grooves, a 4-to-be-internally expanded ring piece, a 5-spindle motor, a 6-driving shaft, a 7-driving gear, an 8-eccentric gear, an 801-connecting column, a 9-guiding sliding block, a 10-straight groove connecting rod, a 101-long groove, a 11-connecting rod, a 12-expanding head, a 13-supporting column, a 14-driving mechanism, a 15-fixed table, a 16-coupling and a 17-cushion block.

Detailed Description

The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Referring to fig. 1 to 4, an embodiment of an internal expanding and rounding mechanism for a wind power bearing ring according to the present invention is shown. The embodiment comprises a base 1, a workbench 2 and an annular rotary table 3, wherein the workbench 2 is arranged above the base 1 through a plurality of support columns 13 distributed along the circumferential direction, and the rotary table 3 is rotatably arranged on the workbench 2 and is used for placing a ring-to-be-internally-expanded member 4 (the ring-to-be-internally-expanded member is a bearing ring in the embodiment); the spindle motor 5 is arranged on the base through a plurality of cushion blocks 17, so that the motor is convenient for radiating, of course, in other embodiments of the invention, the spindle motor can be directly arranged at the bottom of the workbench, a better radiating effect is realized by means of the space between the workbench and the base, further, the output shaft of the spindle motor 5 is mechanically connected with the driving shaft 6 penetrating through the workbench 2 along the vertical direction (for example, through a coupling 16), the end part of the driving shaft positioned inside the rotary table is provided with a driving gear 7, eight eccentric gears 8 and eight guide sliding blocks 9 are uniformly arranged on the workbench positioned inside the rotary table along the circumferential direction, the eight eccentric gears are all meshed with the driving gear, each eccentric gear is connected with one connecting rod 11 through a corresponding straight slot connecting rod 10, each connecting rod 11 is arranged on the guide sliding blocks 9 along the radial direction, and the end part of each connecting rod far away from the eccentric gear is provided with an expanding head 12. With the help of the structure, after the ring piece 4 to be expanded is placed on the workbench 2, the spindle motor 5 is controlled to rotate positively, the driving gear 8 rotates to drive the eight eccentric gears 8 to rotate synchronously, under the limit of the guide sliding block, the eight connecting rods 11 move synchronously along the radial direction, the eight expansion heads 12 expand horizontally until the outer walls of the expansion heads support the inner wall of the ring piece to be expanded, the ring piece is rounded, after a period of time, the spindle motor 2 is controlled to rotate reversely, the eight expansion heads 12 contract horizontally, one shaping action is completed, and at the moment, the eight expansion heads can perform repeated shaping on the corresponding parts on the inner wall of the ring piece to be expanded by repeating the circle shaping action repeatedly only; in addition, the rotary table 3 is driven to rotate on the workbench 2 through the driving mechanism 14, so that the ring piece to be expanded placed on the rotary table rotates by a certain angle, the relative positions of the ring piece to be expanded and the eight expansion heads are changed at the moment, the shaping actions are repeated, the eight expansion heads shape different parts on the inner wall of the ring piece to be expanded, then the rotary table is rotated again, the shaping actions are repeated, and the eight expansion heads shape the parts on the inner wall of the ring piece to be expanded repeatedly, so that a better internal expanding rounding effect is achieved, the roundness precision of the ring piece is further improved, and the influence of residual stress in the ring piece is reduced.

In this embodiment, a plurality of balls are disposed at intervals along the circumferential direction at the bottom of the rotary table 3, a track groove is disposed along the circumferential direction on the table 2 below the rotary table 3, the balls are disposed in the track groove, and when the driving mechanism acts, the rotary table can be rotated more smoothly under the cooperation of the balls and the track groove.

In this embodiment, a fixed table 15 is disposed above the working table 2 inside the rotary table 3, and the upper wall surface of the fixed table 15 is slightly higher than the upper wall surface of the working table 2, and the driving gear 7, the eight eccentric gears 8, and the eight guide sliding blocks 9 are all disposed on the upper wall surface of the fixed table. Further, a guide structure is provided between an inner wall surface of the turntable extending in the circumferential direction and an outer wall surface of the stationary table extending in the circumferential direction, for example: set up the guide way that extends along circumference on the internal face of revolving stage, set up a plurality of guide blocks along circumference interval on the external face of fixed station, place a plurality of guide blocks in aforementioned guide way, when external factor leads to the revolving stage to take place slight rocking under the restriction of guide block, can guarantee that the relative position of revolving stage, fixed station does not change, and then guarantee going on smoothly of plastic action.

In this embodiment, a retaining platform 301 is disposed at an outer edge of an upper wall surface of a rotary table for placing an inner expansion ring, a clamping groove 3011 is disposed on an outer wall surface of the retaining platform along a circumferential direction, by means of the foregoing design, clamping of the inner expansion ring and a ring completed by a whole circle is facilitated through cooperation of the clamping groove and a mechanical clamp, and meanwhile, coarse positioning of the retaining platform is facilitated, so that a manipulator can rapidly place the inner expansion ring on the upper wall surface of the rotary table located on the inner side of the retaining platform.

In the embodiment, the dust covers are arranged above the eight guide sliding blocks 9, so that dust and the like floating on a working site can be prevented from falling on the meshing part of the driving gear and the eccentric gear, the hinging part of the straight groove connecting rod and the connecting rod, the sliding fit part of the connecting rod and the guide sliding blocks and the like, the maintenance rate of the mechanism is reduced, and the service life of the mechanism is prolonged; specifically, set up the spacer pin that extends along vertical direction on the outer wall that the direction slider deviates from the driving gear, the bottom of dust cover sets up the spacing hole, through the grafting cooperation in spacer pin and spacing hole, convenient high-efficient ground sets up the dust cover in driving gear, eccentric gear, straight flute connecting rod, direction slider's top.

In this embodiment, a connecting post 801 extending in a vertical direction is disposed at a lower portion of the eccentric gear 8, and the connecting post 801 is inserted into the long groove 101 at one end of the straight groove connecting rod 10 to form a sliding fit, and the other end of the straight groove connecting rod 10 is hinged to the end of the connecting rod 11. Of course, in other embodiments of the present invention, the long groove 101 at one end of the straight groove link 10 may be connected to the end of the link 11 through a pin to form a sliding fit, and the other end of the straight groove link 10 may be connected to a rotating shaft located at the center of the eccentric gear.

In this embodiment, the driving mechanism 14 is a worm driven by a motor, and the outer wall surface of the rotating table extending along the circumferential direction is provided with a plurality of teeth. Of course, in other embodiments of the invention, the drive mechanism may be a motor driven main rotation gear.

The other end of the connecting rod 11 is detachably connected with the expansion head 12 in the embodiment. Specifically, referring to fig. 5, an inserting groove is disposed at the other end portion of the connecting rod away from the driving gear, a limiting hole 1101 (e.g. a bolt hole) is disposed on the connecting rod 11 surrounding the inserting groove, an inserting portion 1201 extending radially is disposed on an inner wall surface of the expansion head 12, a through hole 1202 is disposed on the inserting portion, and for different types of ring expanding members to be expanded, the expansion head is replaced by inserting or extracting the limiting piece (e.g. a bolt) into the limiting hole and the through hole, so that the mechanism is applicable to various types of bearing rings, and further applicable main body types of the expansion mechanism are as follows: referring to fig. 6A to 6D, for the deep groove ball bearing outer ring, the tapered roller bearing outer ring, the cylindrical roller bearing outer ring, and the angular contact ball bearing outer ring, the outer wall surfaces of the different types of expansion heads are respectively provided with an adapting portion corresponding to the inner wall of the bearing outer ring, including but not limited to a hemispherical convex portion, a conical portion, a columnar convex portion, and the like.

The above description is only of the preferred embodiments of the present invention, and any simple modification, equivalent variation and modification of the above embodiments according to the technical principles of the present invention will still fall within the scope of the technical solutions of the present invention.

Claims (10)

1. The utility model provides a wind-powered electricity generation bearing ring internal expanding whole circle mechanism which characterized in that: the device comprises a base (1), a workbench (2) arranged above the base, and a rotary table (3) which is used for placing an inner expansion ring piece (4) and is annular, wherein the rotary table (3) is rotatably arranged on the workbench (2) and is connected with the output end of a driving mechanism arranged on the workbench; the base or the bottom of the workbench is provided with a spindle motor (5), an output shaft of the spindle motor (5) is mechanically connected with a driving shaft (6) penetrating through the workbench (2) along the vertical direction, the end part of the driving shaft is provided with a driving gear (7) positioned inside the rotary table, the workbench positioned inside the rotary table is uniformly provided with a plurality of eccentric gears (8) and a plurality of guide sliding blocks (9) along the circumferential direction, the eccentric gears are meshed with the driving gear and are connected with a connecting rod (11) through corresponding straight groove connecting rods (10), the connecting rod (11) is arranged on the corresponding guide sliding blocks (9) in a radial sliding manner, and the end part of each connecting rod, far away from the eccentric gear, is detachably connected with an expanding head (12).

2. The wind power bearing ring internal expanding rounding mechanism according to claim 1, wherein: the bottom of revolving stage (3) sets up a plurality of balls along circumference interval, is located along circumference setting up the track groove that is used for placing aforementioned ball on workstation (2) of revolving stage (3) below.

3. The wind power bearing ring internal expanding rounding mechanism according to claim 1, wherein: the upper part of the workbench inside the rotary table (3) is provided with a fixed table (15), the upper wall surface of the fixed table is slightly higher than the upper wall surface of the workbench, and the driving gear (7), the eccentric gear (8) and the guide sliding block (9) are arranged on the upper wall surface of the fixed table.

4. The wind power bearing ring internal expanding rounding mechanism according to claim 1, wherein: a baffle table (301) is arranged at the outer edge of the upper wall surface of the rotary table for placing the ring-expanding piece to be internally expanded, and clamping grooves (3011) are formed in the outer wall surface of the baffle table along the circumferential direction.

5. The wind power bearing ring internal expanding rounding mechanism according to claim 1, wherein: and a dust cover is arranged above the driving gear, the eccentric gear, the straight slot connecting rod and the guide sliding block.

6. The wind power bearing ring internal expanding rounding mechanism according to claim 5, wherein: the guide sliding block is arranged on the outer wall deviating from the driving gear and is provided with a limiting pin extending along the vertical direction, and the bottom of the dust cover is provided with a limiting hole for being in plug-in fit with the limiting pin.

7. The wind power bearing ring internal expanding rounding mechanism according to claim 1, wherein: the lower part of the eccentric gear (8) is provided with a connecting column (801) extending along the vertical direction, the connecting column (801) is inserted into a long groove (101) at one end of the straight groove connecting rod (10) to form sliding fit, and the other end of the straight groove connecting rod (10) is hinged with the end part of the connecting rod (11).

8. The wind power bearing ring internal expanding rounding mechanism according to claim 1, wherein: the driving mechanism (14) is a worm driven by a motor, and a plurality of teeth are arranged on the outer wall surface of the rotating table extending along the circumferential direction.

9. The wind power bearing ring internal expanding rounding mechanism according to claim 1, wherein: the connecting rod is far away from the other end of the driving gear and is provided with an inserting groove, a limiting hole (1101) is formed in the connecting rod (11) surrounding the inserting groove in a penetrating mode, an inserting portion (1201) extending along the radial direction is arranged on the inner wall surface of the expansion head (12), a through hole (1202) is formed in the inserting portion, and the connecting rod and the expansion head are detachably connected through the limiting hole and the through hole in an inserting or extracting mode through the limiting piece.

10. The wind power bearing ring internal expanding rounding mechanism according to claim 1, wherein: when the bearing ring is a bearing outer ring, an adapting part corresponding to the inner wall of the bearing outer ring is arranged on the outer wall surface of the expansion head (12).