CN218717238U - Yaw brake device of wind turbine generator - Google Patents

Abstract

The utility model discloses a wind turbine generator system brake equipment that drifts, including brake seat, brake disc and two sets of brake cylinder, brake seat one side is provided with presss from both sides the mouth. The utility model discloses, set the brake block to floated, can drive through first spring and float, when needing the braking, stretch out through the brake cylinder projecting shaft, drive the briquetting and press to the brake block, friction disc and brake disc contact towards brake disc one side through the brake block, thereby oil pressure through brake cylinder fixes the brake disc, set up four friction discs of group on the brake block, detect the wearing and tearing condition of friction disc through ultrasonic ranging probe, when needs are changed, through transferring to the rotatory ninety degrees of cylinder drive brake block, can continue to use, the artificial change frequency of reduction that can be very big, the labor intensity of workers is reduced, the time of wind turbine generator system shut down and maintenance has been reduced, the generating efficiency in the unit interval is improved.

Description

Yaw brake device of wind turbine generator

Technical Field

The utility model relates to a wind turbine generator technical field especially relates to a wind turbine generator system brake equipment that drifts.

Background

The wind turbine generator yaw system is composed of a rotary support bearing, a yaw brake (brake) disc, brake calipers and a plurality of gear transmission mechanisms driven by motors, when the yaw system is not yaw, the brake calipers and the brake disc are in a locking state, the brake calipers are in a half-release state when the yaw system is yaw, and the brake calipers are in a full-release state when the yaw system is automatically untwisted. Usually, the yaw time set by the system is generally (10-15) minutes, and the brake caliper and the brake disc generate a braking effect by means of friction plates arranged on the brake caliper; long-time operation very easily causes the excessive wearing and tearing of friction disc, especially when brake caliper's friction disc wearing and tearing are totally used up and do not in time change, will lead to brake caliper body and brake disc direct friction, causes the brake disc to seriously damage, so conventional maintenance method is exactly the regular replacement friction disc, nevertheless, generally known, the last driftage system part of wind turbine generator system is all very big, it is very troublesome to change, how effectual reduction change friction disc number of times needs the key of improvement at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the wind turbine generator system brake equipment that drifts that proposes.

In order to realize the purpose, the utility model adopts the following technical scheme: a yaw brake device of a wind turbine generator comprises a brake seat, a brake disc and two groups of brake cylinders, wherein a clamping opening is formed in one side of the brake seat, the outer wall of the partial circumference of the brake disc is positioned in the clamping opening, the two groups of brake cylinders are fixedly connected to the upper wall and the lower wall of the brake seat respectively, a position avoiding cavity is formed in the upper wall and the lower wall of the inner side of the clamping opening of the brake seat, a pressing block is connected to the inner part of the position avoiding cavity in a sliding mode, an extension shaft of each brake cylinder penetrates through the inner wall of the brake seat and extends into the position avoiding cavity, the end part of the extension shaft of each brake cylinder is fixedly connected with the pressing block, a guide structure for guiding the right direction is arranged between the pressing block and the brake seat, a group of pull rods penetrates through the inner wall of the brake seat and is positioned close to the left side and the right side, and limiting heads are fixedly connected to the upper ends of the two groups of the pull rods, two sets of spacing head wherein be provided with between a set of and the brake seat upper wall and be used for detecting the range finding structure of pull rod displacement, be provided with between pull rod and the brake seat and be used for removing the reset structure that resets after, two sets of the pull rod stretches into the equal fixedly connected with bearing frame of the inside one end of pressing from both sides mouthful, and is two sets of the bearing frame inside wall rotates respectively to be connected with and is the first pivot, the second pivot of controlling the distribution, fixedly connected with brake block between the relative one end of first pivot, second pivot, the brake block is the cuboid, the brake block and the equal fixedly connected with friction disc in first pivot, the discontiguous four sides of second pivot, be provided with the accent direction subassembly that is used for changing four groups of friction disc directions between first pivot and the brake seat, be provided with between first pivot and the bearing frame and be used for the accent subassembly to transfer the location structure of back with first pivot location.

As a further description of the above technical solution:

the guide structure comprises two groups of guide posts which are fixedly connected to one side of the pressing block facing the brake oil cylinder, and one ends, far away from the pressing block, of the guide posts penetrate through the inner wall of the brake seat and are in sliding connection with the inner wall of the brake seat.

As a further description of the above technical solution:

the range finding structure includes support, ultrasonic ranging probe, reference block, support fixed connection just extends towards one side at one of them a set of upper wall of two sets of spacing heads, ultrasonic ranging probe, reference block fixed connection respectively keep away from the support ultrasonic ranging probe, between the one end lower wall of reference block and the brake seat upper wall and be relative from top to bottom.

As a further description of the above technical solution:

the reset structure comprises two groups of first springs, and the two groups of first springs are respectively sleeved on the outer wall of the pull rod and are both positioned between the brake seat and the limiting head.

As a further description of the above technical solution:

the direction-adjusting assembly comprises a direction-adjusting oil cylinder, a rack and a gear, the direction-adjusting oil cylinder is fixedly connected to the front wall of the brake seat, a direction-adjusting oil cylinder extension shaft penetrates through the inner wall of the brake seat and extends into the inside of the clamping opening, the rack is fixedly connected to the end part of the direction-adjusting oil cylinder extension shaft and is close to the lower wall, the gear is fixedly connected to one end, away from the brake block, of the first rotating shaft, and an included angle between the axis of the direction-adjusting oil cylinder extension shaft and the plane of the brake disc is thirty degrees.

As a further description of the above technical solution:

the positioning structure comprises a jackscrew, a second spring, an elastic pin and four positioning holes, wherein the positioning holes are distributed in a circumference quartering mode and are sequentially arranged on the circumferential outer wall of the first rotating shaft and are located at the position covered by the bearing seat, the jackscrew, the second spring and the elastic pin are sequentially arranged on the inner wall of the bearing seat from outside to inside, and one end, far away from the second spring, of the elastic pin penetrates through the inner wall of the bearing seat and is connected with one group of inner side walls of the four positioning holes in a clamping mode.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this wind turbine generator system braking device that drifts, set the brake block to floated, can drive through first spring and float, when needing the braking, stretch out through the brake cylinder projecting shaft, it presses the brake block to drive the briquetting, friction disc and brake disc contact towards brake disc one side through the brake block, thereby oil pressure through brake cylinder fixes the brake disc, set up four friction discs of group on the brake block, detect the wearing and tearing condition of friction disc through ultrasonic ranging probe, when needs are changed, through transferring to the rotatory ninety degrees of hydro-cylinder drive brake block, can continue to use, the artifical change frequency of reduction that can be very big, the artificial labor intensity is reduced, the time of wind turbine generator system shut down and maintain has been reduced, the generating efficiency in the unit interval is improved.

Drawings

Fig. 1 is a schematic view of an overall structure of a yaw brake device of a wind turbine generator set according to the present invention;

fig. 2 is a partial enlarged view of a point a in fig. 1 of a yaw brake device of a wind turbine generator set according to the present invention;

fig. 3 is a partial sectional view of an internal structure of a brake base clamp opening direction of a yaw brake device of a wind turbine generator set provided by the present invention;

fig. 4 is a side partial sectional view of a first rotating shaft, a bearing seat and a positioning structure of a yaw brake device of a wind turbine generator set provided by the present invention;

fig. 5 is the utility model provides a wind turbine generator system driftage brake equipment's accent subassembly is to local cross-sectional view of operating condition side structure.

Illustration of the drawings:

1. a brake base; 2. a brake disc; 3. a brake cylinder; 4. a direction regulating oil cylinder; 5. a pull rod; 6. a limiting head; 7. a first spring; 8. a support; 9. an ultrasonic ranging probe; 10. a reference block; 11. a guide post; 12. a rack; 13. a bearing seat; 14. a first rotating shaft; 15. a second rotating shaft; 16. a brake pad; 17. a friction plate; 18. carrying out top thread; 19. a second spring; 20. a spring pin; 21. positioning holes; 22. a gear; 23. and (7) briquetting.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the utility model provides a pair of wind turbine generator system brake equipment that drifts: the brake device comprises a brake seat 1, a brake disc 2 and two groups of brake cylinders 3, wherein a clamping opening is formed in one side of the brake seat 1, part of the circumferential outer wall of the brake disc 2 is positioned in the clamping opening, the two groups of brake cylinders 3 are respectively and fixedly connected to the upper wall and the lower wall of the brake seat 1, a position avoiding cavity is formed in the upper wall and the lower wall of the inner side of the clamping opening of the brake seat 1, a pressing block 23 is connected to the inner part of the position avoiding cavity in a sliding mode, an extending shaft of each brake cylinder 3 penetrates through the inner wall of the brake seat 1 and extends into the position avoiding cavity, the end part of the extending shaft of each brake cylinder 3 is fixedly connected with the corresponding pressing block 23, in order to avoid separation of the pressing block 23 and a brake block 16 during braking, a plurality of groups of fixing columns and corresponding fixing holes can be arranged on one side of the pressing block 23 opposite to the brake block 16, and when the pressing block 23 is combined with the brake block 16, relative displacement can be avoided through the fixing columns and the fixing holes;

a guide structure for guiding the direction is arranged between the pressing block 23 and the brake seat 1, the guide structure comprises two groups of guide posts 11, the two groups of guide posts 11 are fixedly connected to one side of the pressing block 23 facing the brake oil cylinder 3, one ends of the two groups of guide posts 11 far away from the pressing block 23 penetrate through the inner wall of the brake seat 1 and are in sliding connection with the inner wall, the pressing block 23 does not deviate when moving up and down through the two groups of guide posts 11, and the pressing block 23 and the brake seat 1 can be connected into a whole to play a role of stability during braking;

a group of pull rods 5 are arranged on the inner wall of the brake seat 1 and are positioned close to the left side and the right side in a penetrating manner, the upper ends of the two groups of pull rods 5 are fixedly connected with limiting heads 6, a distance measuring structure for detecting the moving distance of the pull rods 5 is arranged between one of the two groups of limiting heads 6 and the upper wall of the brake seat 1, the distance measuring structure comprises a support 8, an ultrasonic distance measuring probe 9 and a reference block 10, the support 8 is fixedly connected to the upper wall of one of the two groups of limiting heads 6 and extends towards one side, the ultrasonic distance measuring probe 9 and the reference block 10 are respectively and fixedly connected between the support 8 far away from the ultrasonic distance measuring probe 9 and between the lower wall of one end of the reference block 10 and the upper wall of the brake seat 1 and are opposite up and down, the moving range of the limiting heads 6 is detected through the ultrasonic distance measuring probe 9 and the reference block 10 during braking, actually, the relative position of the brake block 16 after the friction plate 17 is contacted with the brake disk 2 during braking each time, and when the minimum distance between the ultrasonic distance measuring probe 9 and the reference block 10 reaches a preset value, the normal controller of the market controls the direction regulating assembly to act;

a reset structure for resetting after moving is arranged between the pull rod 5 and the brake seat 1, the reset structure comprises two groups of first springs 7, the two groups of first springs 7 are respectively sleeved on the outer wall of the pull rod 5 and are both positioned between the brake seat 1 and the limiting head 6, and the two groups of first springs 7 can drive the brake block 16 to float and be in a suspended state after the brake oil cylinder 3 rises so as to facilitate the movement of the steering assembly;

the end of each of the two groups of pull rods 5 extending into the clamping opening is fixedly connected with a bearing block 13, the inner side walls of the two groups of bearing blocks 13 are respectively and rotatably connected with a first rotating shaft 14 and a second rotating shaft 15 which are distributed left and right, a brake block 16 is fixedly connected between the opposite ends of the first rotating shaft 14 and the second rotating shaft 15, the brake block 16 is a cuboid, four sides of the brake block 16, which are not in contact with the first rotating shaft 14 and the second rotating shaft 15, are respectively and fixedly connected with friction plates 17, a direction adjusting assembly for replacing the directions of the four groups of friction plates 17 is arranged between the first rotating shaft 14 and the brake base 1, the direction adjusting assembly comprises a direction adjusting oil cylinder 4, a rack 12 and a gear 22, the direction adjusting oil cylinder 4 is fixedly connected on the front wall of the brake base 1, an extending shaft of the direction adjusting oil cylinder 4 penetrates through the inner wall of the brake base 1 and extends into the clamping opening, the rack 12 is fixedly connected at the position of the end part of the direction adjusting oil cylinder 4, which extends out of the shaft and is close to the lower wall, the gear 22 is fixedly connected at the end of the first rotating shaft 14, which is far away from the brake block 16, an included angle between the axis of an extending shaft of the steering oil cylinder 4 and the plane of the brake disc 2 is thirty degrees, when the brake block 16 is in a suspended state, the extending shaft of the steering oil cylinder 4 extends, the rack 12 is meshed with the gear 22, the gear 22 is driven to rotate through the movement of the rack 12, so that the brake block 16 rotates ninety degrees to complete sequential replacement operation, the included angle between the axis of the extending shaft of the steering oil cylinder 4 and the plane of the brake disc 2 is thirty degrees, in order to avoid that the brake block 16 moves downwards to cause the dislocation of the rack 12 and the gear 22 when the rack 12 is meshed with the gear 22 for transmission, so that the rotating angle does not reach ninety degrees, in actual operation, the adjusting to ninety degrees cannot be completely achieved, the subsequent braking action is not influenced, the brake block 16 is automatically pressed back to a preset angle when the press block 23 is pressed downwards, and the brake block 16 retracts after the extending shaft of the steering oil cylinder 4 moves downwards in the next braking operation, the adjusted direction can be prevented from being brought back;

a positioning structure used for positioning the first rotating shaft 14 after the direction adjusting assembly is adjusted backwards is arranged between the first rotating shaft 14 and the bearing seat 13, the positioning structure comprises a jackscrew 18, a second spring 19, an elastic pin 20 and four positioning holes 21, the four positioning holes 21 are circumferentially and equally distributed and sequentially arranged on the circumferential outer wall of the first rotating shaft 14 and are positioned at the covering part of the bearing seat 13, the jackscrew 18, the second spring 19 and the elastic pin 20 are sequentially arranged on the inner wall of the bearing seat 13 from outside to inside, one end of the elastic pin 20, far away from the second spring 19, penetrates through the inner wall of the bearing seat 13 and is clamped with one group of inner side walls of the four positioning holes 21, and after the direction adjusting assembly acts, the position is limited through the clamping of the elastic pin 20 and the positioning holes 21.

The working principle is as follows: when braking, the extension shaft of the brake cylinder 3 extends to drive the press block 23 to press the brake block 16, the brake block 16 is further pressed to the brake disc 2, the friction between the friction plate 17 on the outer wall of the brake block 16 and the brake disc 2 is generated for braking, the press block 23 does not deviate when moving up and down through the two groups of guide columns 11, the press block 23 and the brake seat 1 are connected into a whole to play a stable role during braking, the moving range of the limiting head 6 is detected through the ultrasonic distance measuring probe 9 and the reference block 10 during each braking, actually, the relative position of the brake block 16 after the friction plate 17 is contacted with the brake disc 2 during each braking, when the minimum distance between the ultrasonic distance measuring probe 9 and the reference block 10 reaches a preset value, the steering assembly is controlled to act through a common controller on the market, when the brake block 16 is in a suspended state, the extension shaft of the steering cylinder 4 extends, the rack 12 is meshed with the gear 22, the gear 22 is driven to rotate through the movement of the rack 12, thereby, the brake block 16 rotates, the operation of the brake block 16 is completed, the sequential replacement operation, thirty degrees are sequentially, the operation of the extension shaft of the replacement of the cylinder 4 and the gear 12 and the gear 22 are not meshed to avoid the influence of the automatic pressing of the brake block 16, the brake block 16 is not pressed down, the brake block 16 is not pressed by the rotation angle, the rotation angle of the brake block 16, and the brake block 16, the brake block 16 is not be dislocated, and the brake block is not influenced by the automatic clamping operation, the automatic clamping operation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (6)

1. The utility model provides a wind turbine generator system brake equipment that drifts, includes brake seat (1), brake disc (2) and two sets of brake cylinder (3), brake seat (1) one side is provided with presss from both sides the mouth, inside brake disc (2) partial circumference outer wall is in pressing from both sides the mouth, two sets of brake cylinder (3) fixed connection respectively are at brake seat (1) upper wall and lower wall, its characterized in that: braking seat (1) presss from both sides the inboard upper wall of mouthful and inboard lower wall and all is provided with and keeps away the position chamber, keep away the inside sliding connection of position chamber and have briquetting (23), brake cylinder (3) projecting shaft runs through braking seat (1) inner wall and stretches into to keeping away a intracavity portion, brake cylinder (3) stretch out a tip and briquetting (23) fixed connection, set up by the guide structure who is used for leading the direction between briquetting (23) and braking seat (1), braking seat (1) inner wall and position are close to about both sides all to run through and are provided with a set of pull rod (5), and are two sets of the equal fixed connection of pull rod (5) upper end has spacing head (6), and are two sets of spacing head (6) wherein be provided with between a set of and braking seat (1) upper wall and be used for detecting the range finding structure of pull rod (5) displacement, be provided with the reset structure who is used for removing the back between pull rod (5) and the braking seat (1), it is two sets of pull rod (5) stretch into the equal fixed connection of the inside one end of pressing from both sides and rotating shaft (13) and second pivot (14) that second pivot (14) distribute respectively, brake block (15) and second pivot (16) are connected with the brake block (14), second pivot (16) and brake block (16) are distributed about pivot (16) and second pivot (16) are fixed connection of rotating shaft (14), and brake block (16) and the pivot (16) are connected with the pivot (16) bearing seat (16) that the pivot that the brake block (16) are fixed connection of pressing from both sides respectively, the brake block (16) that the brake block (16) are connected with the brake seat (16) are relatively that the clamping mouth inside All fixedly connected with friction disc (17) on the four sides that second pivot (15) are not contacted, be provided with between first pivot (14) and brake seat (1) and be used for changing the accent of four groups friction disc (17) directions to the subassembly, be provided with between first pivot (14) and bearing frame (13) and be used for transferring to the subassembly and transfer the location structure of back with first pivot (14) location.

2. The wind turbine generator yaw brake device according to claim 1, characterized in that: the guide structure comprises two groups of guide posts (11), wherein the guide posts (11) are fixedly connected to one side, facing the brake oil cylinder (3), of the pressing block (23), and the ends, far away from the pressing block (23), of the guide posts (11) penetrate through the inner wall of the brake seat (1) and are in sliding connection with the inner wall.

3. The yaw brake device of the wind turbine generator according to claim 2, wherein: the range finding structure includes support (8), ultrasonic ranging probe (9), reference block (10), support (8) fixed connection is at two sets of spacing head (6) wherein a set of upper wall and extend towards one side, ultrasonic ranging probe (9), reference block (10) fixed connection respectively are kept away from between the one end lower wall of ultrasonic ranging probe (9), reference block (10) and brake seat (1) upper wall and are relative from top to bottom in support (8).

4. The wind turbine generator yaw brake device according to claim 3, wherein: the reset structure comprises two groups of first springs (7), wherein the two groups of first springs (7) are respectively sleeved on the outer wall of the pull rod (5) and are respectively positioned between the brake seat (1) and the limiting head (6).

5. The wind turbine generator yaw brake device according to claim 4, wherein: the accent is to the subassembly including transferring to hydro-cylinder (4), rack (12), gear (22), transfer to hydro-cylinder (4) fixed connection at brake seat (1) antetheca, transfer to inside running through brake seat (1) inner wall and stretching into to pressing from both sides the mouth to hydro-cylinder (4) projecting shaft, rack (12) fixed connection just is close to the lower wall position at transferring to hydro-cylinder (4) projecting shaft tip, gear (22) fixed connection is in the one end of keeping away from brake pads (16) in first pivot (14), transfer to the contained angle between hydro-cylinder (4) projecting shaft axle center and brake disc (2) plane and be thirty degrees.

6. The wind turbine generator yaw brake device according to claim 5, wherein: location structure includes jackscrew (18), second spring (19), bullet round pin (20) and everywhere locating hole (21), everywhere locating hole (21) are circumference quartering distribution and set gradually at first pivot (14) circumference outer wall and lie in bearing frame (13) cover department, jackscrew (18), second spring (19) and bullet round pin (20) set gradually at bearing frame (13) inner wall according to outside to interior order, the one end that second spring (19) were kept away from in bullet round pin (20) runs through bearing frame (13) inner wall and with a set of inside wall joint wherein of everywhere locating hole (21).

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