Yaw driving device of wind power generation equipment
By using a design with a limit ring, a limit track, and a rolling ball connection, the problem of yaw gear rotation limit is solved, achieving efficient meshing and long-life operation of the yaw drive device, and improving wind power generation efficiency.
Patent Information
- Application Number
- CN202520845439.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-30
AI Technical Summary
Traditional wind power generation equipment's yaw drive system lacks rotation limit protection when the yaw gear rotates, causing the yaw gear's rotation center to deviate, affecting the gear meshing effect and reducing wind power generation efficiency.
The design employs a limit ring and limit rail in conjunction with a limit post, and uses a ball bearing rolling connection to achieve annular rotational limit of the yaw gear disk. The drive load is reduced by the synchronous operation of multiple drive motors.
It effectively prevents the rotation center of the yaw gear disk from deviating, maintains a tight meshing state, improves the system adjustment quality, reduces wear and resistance, extends service life, and improves the service life of the motor.
Smart Images
Figure CN223894301U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wind power generation equipment technical field, concretely is yaw drive device of wind power generation equipment. BACKGROUND
[0002] As an important component of wind turbine, yaw system is used to capture wind energy to the maximum extent, and then improve wind energy utilization rate and power generation capacity. The yaw gear of the yaw drive system of the traditional wind power generation equipment has no rotation limiting protection structure when rotating for yaw adjustment, so that the rotation center of the yaw gear is easy to deviate under the long-time rotation wear or external force, the meshing degree between the yaw gear and the drive gear is loose after deviation, the gear wear is increased, the gear meshing effect of the yaw gear is affected, the adjustment quality of the yaw system is affected, and the wind power generation efficiency is reduced. SUMMARY
[0003] The utility model discloses yaw drive device of wind power generation equipment aims at providing to solve the problem in the background art.
[0004] To achieve the above object, the utility model provides the following technical scheme: yaw drive device of wind power generation equipment, including outer ring spare, the top inside fixed mounting of outer ring spare has upper top plate, the bottom inside fixed mounting of outer ring spare has lower bottom plate, the lower surface of upper top plate and the upper surface of lower bottom plate all fixed mounting has two limit baffle rings, the diameter of two limit baffle rings is different, and the clearance between the limit baffle ring of same side is limit track, the inside of outer ring spare and between upper top plate and lower bottom plate are provided with yaw gear disc, the outside of yaw gear disc is fixedly installed with limit disc, the upper and lower end outer wall of limit disc all is fixedly installed with a plurality of limit posts, a plurality of limit posts are distributed through the center point of limit disc equidistantly, the top inside of each limit post all is installed with the ball that rolls, the top of limit post is placed in the limit track of limit baffle ring, and limit post is rolled contact through the ball and corresponding limit track, the outside of limit disc is provided with brake disc.
[0005] Preferably, the outer ring, the upper top plate and the lower bottom plate jointly form a yaw drive base.
[0006] Preferably, the outer ring, the upper top plate and the lower bottom plate are designed in an integral molding structure.
[0007] Preferably, the inner wall of the yaw gear disc is provided with a plurality of internal teeth, and the plurality of internal teeth are distributed equidistantly through the center point of the yaw gear disc.
[0008] Preferably, the outer wall of each limiting column is fixedly sleeved with not less than three reinforcing rings made of aluminum alloy material.
[0009] Preferably, the outer periphery of the brake disc is provided with a plurality of uniformly distributed caliper brakes, the number of the caliper brakes is not less than four, and the caliper brakes are fixedly installed on the inner wall of the outer ring.
[0010] Preferably, the upper surface of the upper top plate is provided with not less than four groups of circular grooves, and each circular groove is fixedly installed with a fixing seat on the upper surface of the upper top plate.
[0011] Preferably, the upper surface of the fixing seat is fixedly installed with a shaft coupling through bolts, and the top end of the shaft coupling is fixedly installed with a driving motor.
[0012] Preferably, the output shaft of the driving motor is connected with the input end of the shaft coupling, and the output end of the shaft coupling is fixedly installed with a driving gear through a shaft body.
[0013] Preferably, the outer side of the driving gear is in meshing connection with the inner teeth of the inner side of the yaw gear disc.
[0014] Compared with the prior art, the utility model has the advantages that:
[0015] The utility model discloses a limiting column and a limiting track cooperate to limit the rotation of the yaw gear disc, which can effectively avoid the rotation center deviation of the yaw gear disc caused by wear or external force after long-term use, and keep the yaw gear disc and the driving gear in close meshing state at all times, so that the protection effect of the rotation limiting is better, the system adjustment quality of the yaw gear is improved, the gear meshing loosening phenomenon caused by the rotation center deviation of the yaw gear disc is avoided, and the overall use effect and service life of the yaw driving device are improved.
[0016] The limiting column and the limiting track are connected through rolling balls, so that when the limiting column rotates in the limiting track, the friction effect between the limiting column and the limiting track is rolling friction, which can effectively improve the smoothness of the circular rotation of the limiting column, reduce the resistance, effectively reduce the structure wear, and compared with sliding friction, the utility model can effectively reduce the rotation wear effect through the rolling friction contact mode, and improve the overall service life of the structure.
[0017] Meanwhile, the utility model discloses the drive motor of not less than four groups is set, and the drive motor that sets can be unified work when needing to carry out the yaw drive, compared with single motor drive, the utility model discloses the synchronous operation of several drive motors can effectively reduce the drive load of each motor's start -up operation, has the actual use effect of driving load sharing, thereby can effectively improve the service life of motor. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is yaw drive device whole three -dimensional structure schematic diagram of the utility model embodiment;
[0019] Figure 2 It is yaw drive base internal structure schematic diagram of the utility model embodiment;
[0020] Figure 3 It is yaw gear disc whole structure schematic diagram of the utility model embodiment;
[0021] Figure 4 It is limit stop ring structure schematic diagram of the utility model embodiment;
[0022] Figure 5 It is yaw gear disc front view plane structure schematic diagram of the utility model embodiment;
[0023] Figure 6 It is yaw drive base internal section structure schematic diagram of the utility model embodiment.
[0024] In the drawing: 1, outer ring piece;2, upper top plate;3, lower bottom plate;4, yaw gear disc;5, inner tooth;6, limit disc;7, limit column;8, ball;9, reinforcing ring;10, brake disc;11, calliper brake;12, limit stop ring;13, limit track;14, fixed seat;15, shaft coupling;16, drive motor;17, drive gear. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0026] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external" "front end", "rear end", "both ends", "one end", "the other end" and so on indicate the position relation or position relation based on the position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the terms "installation", "provided with", "connection" and so on should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0028] Please refer to Figures 1-6 The utility model provides an embodiment: the yaw drive device of wind driven generator, including outer ring piece 1, the top end inside fixed mounting of outer ring piece 1 has upper top plate 2, the bottom end inside fixed mounting of outer ring piece 1 bottom plate 3, and outer ring piece 1, upper top plate 2 and bottom plate 3 jointly form yaw drive base;
[0029] And in order to facilitate the integrated casting production, outer ring piece 1, upper top plate 2 and bottom plate 3 adopt integrated molding type structure design.
[0030] Wherein, referring to the drawings of the specification Figure 4 The lower surface of the upper top plate 2 and the upper surface of the bottom plate 3 are both fixedly installed with two limiting check rings 12, the diameters of the two limiting check rings 12 are different, and the gap between the two limiting check rings 12 on the same side is a limiting track 13.
[0031] Further, the inside of the outer ring piece 1 and between the upper top plate 2 and the bottom plate 3 is provided with a yaw gear disc 4, the outer side of the yaw gear disc 4 is fixedly installed with a limiting disc 6, a plurality of limiting columns 7 are fixedly installed on the upper and lower end outer walls of the limiting disc 6, the plurality of limiting columns 7 are distributed at equal intervals through the center point of the limiting disc 6, a rolling ball 8 is rolling installed in the inside of the top end of each limiting column 7, the top end of the limiting column 7 is placed in the limiting track 13 of the limiting check ring 12, and the limiting column 7 is in rolling contact with the corresponding limiting track 13 through the rolling ball 8.
[0032] According to the above structure, when the yaw gear disc 4 of the utility model is driven to rotate under the action of the driving structure, the outer side connected limiting disc 6 can rotate synchronously, because the upper and lower outer walls of the limiting disc 6 are provided with limiting columns 7, and the limiting columns 7 are in rolling contact with the limiting tracks 13 through the balls 8, so that when the limiting disc 6 rotates, the limiting columns 7 on the upper and lower outer walls can rotate and limit in the limiting tracks 13, and through the limiting and blocking effect of the two side limiting check rings 12, the limiting columns 7 can be effectively prevented from separating from the limiting tracks 13, so that the yaw gear disc 4 can always rotate around a rotation center, and the rotation circle is prevented from deviating, thereby having better limiting rotation use effect.
[0033] In actual use, the limiting disc 6 is circularly rotated and limited through the limiting check ring 12, the limiting track 13 and the limiting column 7, so that the rotation center deviation problem of the yaw gear disc 4 caused by wear or external force under long-term use can be effectively avoided, the yaw gear disc 4 and the driving gear can always be in close meshing state, the rotation limiting protection effect is better, the system adjustment quality of the yaw gear is improved, the gear meshing loosening phenomenon caused by the rotation center deviation of the yaw gear disc 4 is avoided, and the overall use effect and service life of the yaw driving device are improved.
[0034] The limiting column 7 and the limiting track 13 are connected through the ball 8, so that when the limiting column 7 circularly rotates in the limiting track 13, the friction effect between the limiting column 7 and the limiting track 13 is rolling friction, so that the smoothness of the circular rotation of the limiting column 7 can be effectively improved, the resistance is reduced, the structure wear can be effectively reduced, compared with sliding friction, the utility model can effectively reduce the rotation wear effect through the rolling friction contact mode, and the overall service life of the structure is improved.
[0035] In order to improve the torsional strength of the limiting column 7 and avoid the rotation deformation of the limiting column 7, not less than three reinforcing rings 9 are fixedly sleeved on the outer wall of each limiting column 7, the reinforcing rings 9 are made of aluminum alloy material, so that the overall column structure strength of the limiting column 7 can be effectively improved through the reinforcing ring 9, and the use effect is improved.
[0036] In the embodiment, in order to facilitate the braking treatment of the yaw gear disc assembly, the outer side of the limiting disc 6 is provided with a brake disc 10, a plurality of caliper brakes 11 are uniformly distributed on the periphery of the brake disc 10, the number of the caliper brakes 11 is not less than four, and the caliper brakes 11 are fixedly installed on the inner wall of the outer ring 1.
[0037] Through the caliper braking mode of the caliper brake 11, the yaw gear disc assembly can be braked, and the normal gear disc braking effect is ensured.
[0038] In the embodiment, in order to ensure the normal gear engagement effect of the yaw gear disc 4, a plurality of internal teeth 5 are arranged on the inner wall of the yaw gear disc 4, and the plurality of internal teeth 5 are distributed at equal intervals along the circumference of the center point of the yaw gear disc 4, so that the internal teeth 5 arranged can be engaged and connected with the gear structure.
[0039] In the embodiment, in order to drive the yaw gear disc 4, a plurality of circular grooves are formed in the upper surface of the upper top plate 2, a fixing seat 14 is fixedly installed on each circular groove and located on the upper surface of the upper top plate 2, a coupling 15 is fixedly installed on the upper surface of the fixing seat 14 through bolts, and a driving motor 16 is fixedly installed at the top end of the coupling 15.
[0040] Further, the output shaft of the driving motor 16 is connected with the input end of the coupling 15, the output end of the coupling 15 is fixedly installed with a driving gear 17 through a shaft body, and the driving gear 17 is in engagement connection between the outer side and the internal teeth 5 on the inner side of the yaw gear disc 4.
[0041] The structure design, through the driving motor 16 arranged can drive the driving gear 17 at the bottom to rotate through the coupling 15, when the driving gear 17 rotates, it will drive the yaw gear disc 4 to rotate synchronously, so as to have the actual use effect of yaw driving.
[0042] And the utility model discloses a plurality of driving motors 16 are arranged, the driving motor 16 arranged can work uniformly when yaw driving is needed, compared with single motor driving, the utility model discloses a plurality of driving motors 16 synchronous operation, so as to effectively reduce the driving load of each motor when starting operation, has the actual use effect of driving load sharing, so as to effectively improve the service life of motor.
[0043] Working principle: the driving motor 16 arranged can drive the driving gear 17 at the bottom to rotate through the coupling 15, when the driving gear 17 rotates, it will drive the yaw gear disc 4 to rotate synchronously, so as to have the actual use effect of yaw driving.
[0044] At the same time, the caliper brake 11 can brake the yaw gear disc assembly by the caliper brake mode, so as to ensure the normal gear disc braking effect.
[0045] When the yaw gear disc 4 of the utility model is driven to rotate under the action of the driving structure, the outer side connected limiting disc 6 can rotate synchronously, because the upper and lower outer walls of the limiting disc 6 are provided with limiting columns 7, and the limiting columns 7 are in rolling contact with the limiting tracks 13 through the balls 8, so that when the limiting disc 6 rotates, the limiting columns 7 on the upper and lower outer walls can rotate around the limiting tracks 13, and through the limiting and blocking effect of the limiting baffle rings 12 on both sides, the problem that the rotating center of the yaw gear disc 4 deviates can be effectively avoided, so that the yaw gear disc 4 can always rotate around a rotating center, and the rotating circle does not deviate, so that the limiting and rotating effect is good.
[0046] In actual use, the limiting baffle rings 12 and the limiting tracks 13 cooperate with the limiting columns 7 to rotate around, so that the problem that the rotating center of the yaw gear disc 4 deviates due to wear or external force after long-term use can be effectively avoided, the yaw gear disc 4 and the driving gear can always be in close engagement, the protection effect of the rotating limiting is better, the system adjustment quality of the yaw gear is improved, the gear engagement loosening phenomenon caused by the deviation of the rotating center of the yaw gear disc 4 is avoided, and the overall use effect and service life of the yaw driving device are improved.
[0047] And the limiting column 7 and the limiting track 13 are connected through the ball 8, so that when the limiting column 7 rotates around in the limiting track 13, the friction effect between the limiting column 7 and the limiting track 13 is rolling friction, so that the smoothness of the circular rotation of the limiting column 7 can be effectively improved, the resistance is reduced, and the structure wear is effectively reduced.
[0048] Meanwhile, the utility model discloses a driving motor 16 not less than four groups is provided, and the driving motor 16 is arranged and can work uniformly when yaw driving is needed, compared with single motor driving, the utility model discloses the synchronous operation of several driving motors 16, so that the driving load of each motor when starting operation can be effectively reduced, and the actual use effect of driving load sharing is obtained, so that the service life of the motor can be effectively improved.
[0049] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.
Claims
1. A yaw drive device for wind power generation equipment, comprising an outer ring component (1), characterized in that, An upper top plate (2) is fixedly installed inside the top of the outer ring (1), and a lower bottom plate (3) is fixedly installed inside the bottom of the outer ring (1). Two limiting rings (12) are fixedly installed on the lower surface of the upper top plate (2) and the upper surface of the lower bottom plate (3). The two limiting rings (12) have different diameters, and the gap between the two limiting rings (12) on the same side is a limiting track (13). A yaw gear disk (4) is provided inside the outer ring (1) and between the upper top plate (2) and the lower bottom plate (3). The yaw gear disk (4) has... A limiting disc (6) is fixedly installed on the outer side. Several limiting posts (7) are fixedly installed on the upper and lower outer walls of the limiting disc (6). The several limiting posts (7) are circumferentially distributed at equal intervals through the center point of the limiting disc (6). A ball (8) is rolled inside the top of each limiting post (7). The top of the limiting post (7) is placed in the limiting track (13) of the limiting retaining ring (12). The limiting post (7) rolls in contact with the corresponding limiting track (13) through the ball (8). A brake disc (10) is provided on the outer side of the limiting disc (6).
2. The yaw drive device for wind power generation equipment according to claim 1, characterized in that: The outer ring (1), the upper top plate (2), and the lower bottom plate (3) together form the yaw drive base.
3. The yaw drive device for wind power generation equipment according to claim 1, characterized in that: The outer ring (1), the upper top plate (2) and the lower bottom plate (3) adopt an integrated molding structure design.
4. The yaw drive device for wind power generation equipment according to claim 1, characterized in that: The inner wall of the yaw gear disk (4) is provided with a number of internal teeth (5), and the number of internal teeth (5) are distributed circumferentially at equal intervals through the central point of the yaw gear disk (4).
5. The yaw drive device for wind power generation equipment according to claim 1, characterized in that: Each of the limiting posts (7) is fixedly fitted with no less than three reinforcing rings (9) on its outer wall, and the reinforcing rings (9) are made of aluminum alloy.
6. The yaw drive device for wind power generation equipment according to claim 1, characterized in that: The brake disc (10) is provided with a number of evenly distributed caliper brakes (11) around its periphery. The number of caliper brakes (11) is not less than four. The caliper brakes (11) are fixedly installed on the inner wall of the outer ring (1).
7. The yaw drive device for wind power generation equipment according to claim 1, characterized in that: The upper surface of the top plate (2) is provided with no less than four sets of circular grooves, and a fixing seat (14) is fixedly installed on each of the circular grooves and on the upper surface of the top plate (2).
8. The yaw drive device for wind power generation equipment according to claim 7, characterized in that: A coupling (15) is fixedly installed on the upper surface of the fixed base (14) by bolts, and a drive motor (16) is fixedly installed on the top of the coupling (15).
9. The yaw drive device for wind power generation equipment according to claim 8, characterized in that: The output shaft of the drive motor (16) is connected to the input end of the coupling (15), and the output end of the coupling (15) is fixedly mounted with a drive gear (17) through the shaft.
10. The yaw drive device for wind power generation equipment according to claim 9, characterized in that: The outer side of the drive gear (17) meshes with the inner teeth (5) on the inner side of the yaw gear disk (4).