CN211259498U

CN211259498U - Yaw controller

Info

Publication number: CN211259498U
Application number: CN201920775786.2U
Authority: CN
Inventors: 张磊; 苗继春; 程学文; 张舒翔; 刘洋广; 张耀文
Original assignee: Datang Renewable Energy Test And Research Institute Co ltd
Current assignee: Datang Renewable Energy Test And Research Institute Co ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-08-14
Anticipated expiration: 2029-05-27

Abstract

The utility model belongs to the technical field of driftage speed reduction technique and specifically relates to a yaw controller, including one-level speed reduction portion and second grade speed reduction portion, one-level speed reduction portion sets up in second grade speed reduction portion upper end, suitably increases one-level transmission shaft axial length and second grade transmission shaft axial length for under the condition that does not increase cost and material, reach reduction gear speed reduction effect as far as possible, each axle all has the antifriction bearing supporting. The machine body is connected by screws, and a hot ring is arranged in the middle of the machine body and used for adjusting axial clearance and ensuring correct relative positions of the pot wheel, the pot rod, the first-stage bevel gear and the first-stage bevel gear. The first-stage transmission shaft and the second-stage transmission shaft extend out of holes at two ends of the machine body, a certain gap is reserved between the holes and the shafts, the top cover is internally filled with filler, the second key prevents axial movement of the first-stage bevel gear, and the two rolling bearings, the ferrule and the like are completely sleeved in the sleeve to ensure stable internal structure of the machine body and optimal speed reduction effect.

Description

Yaw controller

Technical Field

The utility model belongs to the technical field of driftage speed reduction technique and specifically relates to a yaw controller.

Background

The yaw speed reducer is a key component of the wind driven generator (11), and the application conditions and requirements are as follows: large torque, low rotating speed, intermittent operation, strong impact resistance, high transmission efficiency (more than 85 percent) and long service life (20 years). The imported or domestic yaw speed reducer which is applied at present adopts a four-stage cylindrical involute gear planetary transmission structure. In the existing speed reducer, because a secondary envelope cycloid gear planetary transmission mechanism is adopted and multi-stage transmission is carried out, a meshing pair has the characteristic of multi-tooth meshing in common cycloid pin gear planetary transmission (the number of meshing teeth can reach half of the total number of teeth at the same time), and in a certain region, a pair of gear teeth has the characteristic of double-line contact; the curvature of the secondary envelope contact point induction method tends to zero, which is beneficial to improving the bearing capacity and the lubricating property. However, the two-stage transmission of the conventional speed reducer is a double-enveloping cycloid gear planetary transmission mechanism, so the manufacturing cost is relatively high, and the transmission efficiency of the double-enveloping cycloid gear planetary transmission is lower than that of a common gear. When wind power is too large, the rotation speed of the fan blade is high, and when the speed reaches a certain value, the fan cannot be stopped, and runaway is easy to happen, so that the fan is damaged.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve current reduction gear manufacturing cost relatively higher, and the more ordinary gear drive efficiency of secondary envelope cycloid gear planetary transmission can be on the low side the scheduling problem, the utility model provides a yaw controller, the motor drives the one-level transmission shaft and rotates, makes the worm wheel rotate through the pot pole, and pot wheel and connecting axle are connected with No. two keys, and the one-level bevel gear who makes rather than being connected through the connecting axle is along with the rotation of connecting axle, and the gyration of making rather than the second grade bevel gear that the whistle closed by one-level bevel gear's gyration, rethread second grade bevel gear make the second grade transmission shaft rotate. Therefore, the input shaft of the speed reducer is a primary transmission shaft, and the output shaft is a primary transmission shaft.

In order to solve when wind-force is too big, transmission efficiency is low and can't make the fan stop, takes place the galloping easily, the utility model provides a yaw controller suitably increases one-level transmission shaft axial length and second grade transmission shaft axial length for under the condition that does not increase cost and material, reach the reduction gear effect as far as possible, the effectual blade that has reduced has improved the life of fan because of the equipment damage that the galloping caused.

In order to solve the internal structure instability of the body, the utility model provides a yaw controller, each axle all has the antifriction bearing supporting. The machine body is connected by screws, and a hot ring is arranged in the middle of the machine body and used for adjusting axial clearance and ensuring correct relative positions of the pot wheel, the pot rod, the first-stage bevel gear and the first-stage bevel gear. The first-stage transmission shaft and the second-stage transmission shaft extend out of holes at two ends of the machine body, and a certain gap is reserved between the holes and the shafts.

In order to prevent lubricating oil seepage and dust in the box from getting into the organism, the utility model provides a yaw controller all is equipped with the filler in the top cap. The second key prevents the first-stage bevel gear from moving axially. Two rolling bearings and a ring are completely sleeved in the sleeve.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a yaw controller, includes one-level deceleration portion and second grade deceleration portion, one-level deceleration portion sets up in second grade deceleration portion right side downside, its characterized in that:

the first-stage speed reduction part comprises a motor, a first-stage transmission shaft, a worm wheel, an oil inlet valve, a first nut, an observation port, an oil outlet valve, lubricating oil and a machine body, wherein the motor is arranged at the lower end of the machine body;

the second-stage speed reducer comprises a first-stage bevel gear, a second-stage transmission shaft, a first key, a yawing base, a second nut, a shaft end cover, a second key and a connecting shaft, wherein the second-stage bevel gear is fixedly connected with the bottom end of the second-stage transmission shaft;

the worm is meshed with the worm wheel, and the primary bevel gear is meshed with the secondary bevel gear;

the first-stage speed reduction part is connected with the second-stage speed reduction part through a connecting shaft.

Specifically, the primary transmission shaft and the worm are located on the same axis, the worm wheel and the primary bevel gear are located on the same axis, and the secondary bevel gear and the secondary transmission shaft are located on the same axis.

Specifically, the material of the oil inlet valve is rubber, and the material of the oil outlet valve is rubber.

Further, a magnifying glass is installed at the observation port.

Furthermore, the right end of the machine body is provided with 4 first nuts.

Further, the first-stage transmission shaft is a hollow cylinder, and the second-stage transmission shaft is a hollow cylinder.

The utility model provides a yaw controller, motor drive one-level transmission shaft rotate, make the worm wheel rotate through the pot pole, and the pot wheel makes rather than the rotation of connecting axle with No. two key-types connection through the connecting axle for the connecting axle, and the gyration of one-level bevel gear makes the second grade bevel gear gyration rather than whistle closes by one-level bevel gear's gyration, and rethread second grade bevel gear makes the second grade transmission shaft rotate. Therefore, the input shaft of the speed reducer is a primary transmission shaft, and the output shaft is a primary transmission shaft.

The utility model provides a yaw controller suitably increases one-level transmission shaft axial length and secondary drive shaft axial length for under the condition of not increasing cost and material, reach the reduction gear effect of slowing down as far as possible, the effectual blade that has reduced has improved the life of fan because of the equipment damage that the driving caused.

The utility model provides a yaw controller, each axle all have the antifriction bearing supporting. The machine body is connected by screws, and a hot ring is arranged in the middle of the machine body and used for adjusting axial clearance and ensuring correct relative positions of the pot wheel, the pot rod, the first-stage bevel gear and the first-stage bevel gear. The first-stage transmission shaft and the second-stage transmission shaft extend out of holes at two ends of the machine body, and a certain gap is reserved between the holes and the shafts.

The utility model provides a yaw controller all is equipped with the filler in the top cap. The second key prevents the first-stage bevel gear from moving axially. Two rolling bearings and a ring are completely sleeved in the sleeve.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a yaw controller according to the present invention;

fig. 2 is a schematic structural diagram of a primary speed reduction part of a yaw controller according to the present invention;

fig. 3 is a schematic structural diagram of a two-stage speed reduction portion of a yaw controller according to the present invention.

In the figure: 1. a first-stage speed reduction unit; 2. a secondary speed reduction part; 11. a motor; 12. a primary transmission shaft; 13. a worm; 14. a worm gear; 15. an oil inlet valve; 16. a first nut; 17. a viewing port; 18. an oil outlet valve; 19. lubricating oil; 110. a body; 21. a primary bevel gear; 22. a secondary bevel gear; 23. a secondary transmission shaft; 24. a first key; 25. a yaw base; 26. a second nut; 27. a shaft end cover; 28. a second bond; 29. and (7) connecting the shafts.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1, a yaw controller comprises a primary speed reduction part 1 and a secondary speed reduction part 2, wherein the primary speed reduction part 1 is arranged at the lower right side of the secondary speed reduction part 2, the primary speed reduction part 1 comprises a motor 11, a primary transmission shaft 12, a worm 13, a worm wheel 14, an oil inlet valve 15, a first nut 16, an observation port 17, an oil outlet valve 18, lubricating oil 19 and a machine body 110, the motor 11 is arranged at the lower end of the machine body 110, the primary transmission shaft 12 is matched with the inner diameter and the outer diameter of the worm 13, the worm 13 is fixedly connected with the upper end of the primary transmission shaft 12, the worm wheel 14 is arranged at the upper end of the worm 13, the oil inlet valve 15 is arranged at the top end of the machine body 110, the observation port 17 is; the second-stage speed reduction part 2 comprises a first-stage bevel gear 21, a second-stage bevel gear 22, a second-stage transmission shaft 23, a first key 24, a yawing base 25, a second nut 26, a shaft end cover 27, a second key 28 and a connecting shaft 29, wherein the second-stage bevel gear 22 is fixedly connected with the bottom end of the second-stage transmission shaft 23, the bottom end of the second-stage transmission shaft 23 is fixedly connected with the second-stage bevel gear 22, the first key 24 is arranged at the upper end of the second-stage transmission shaft 23, the yawing base 25 is fixedly connected with the second-stage transmission shaft 23 through the first key 24, the shaft end cover 27 is fixedly connected with the machine body 110 through the second nut 26, and one end of the; the worm 13 is meshed with the worm wheel 14, and the primary bevel gear 21 is meshed with the secondary bevel gear 22; the primary speed reduction unit 1 and the secondary speed reduction unit 2 are connected by a connecting shaft 29.

The primary transmission shaft 12 and the worm 13 are on the same axis, the worm wheel 14 and the primary bevel gear 21 are on the same axis, and the secondary bevel gear 22 and the secondary transmission shaft 23 are on the same axis.

Preferably, the material of the oil inlet valve 15 is rubber, and the material of the oil outlet valve 18 is rubber.

Wherein the viewing port 17 is fitted with a magnifying glass.

Wherein, the right end of the machine body 110 is provided with 4 first nuts 16.

Preferably, the primary transmission shaft 12 is a hollow cylinder, and the secondary transmission shaft 23 is a hollow cylinder.

When the speed reducer works, the motor 11 drives the primary transmission shaft 12 to rotate, the worm wheel 14 rotates through the pan rod, the pan wheel is connected with the connecting shaft 29 through the second key 28, the primary bevel gear 21 connected with the connecting shaft 29 rotates along with the rotation of the connecting shaft 29 through the connecting shaft 29, the secondary bevel gear 22 meshed with the primary bevel gear 21 rotates through the rotation of the primary bevel gear 21, the secondary transmission shaft 23 rotates through the secondary bevel gear 22, the yaw base 25 connected with the secondary transmission shaft 23 is driven to rotate through the rotation of the secondary transmission shaft 23, and therefore the speed reducer achieves the purpose of reducing speed, the input shaft of the speed reducer is the primary transmission shaft 12, and the output shaft of the speed reducer.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a yaw controller, includes one-level deceleration portion (1) and second grade deceleration portion (2), one-level deceleration portion (1) sets up in second grade deceleration portion (2) downside on the right side, its characterized in that:

the first-stage speed reduction part (1) comprises a motor (11), a first-stage transmission shaft (12), a worm (13), a worm wheel (14), an oil inlet valve (15), a first nut (16), an observation port (17), an oil outlet valve (18), lubricating oil (19) and a machine body (110), wherein the motor (11) is arranged at the lower end of the machine body (110), the inner diameter and the outer diameter of the first-stage transmission shaft (12) are matched, the worm (13) is fixedly connected with the upper end of the first-stage transmission shaft (12), the worm wheel (14) is arranged at the upper end of the worm (13), the oil inlet valve (15) is arranged at the top end of the machine body (110), the observation port (17) is arranged at the right side of the oil outlet valve (18), and the oil outlet valve (18) is arranged at the bottom end of;

the two-stage speed reduction part (2) comprises a first-stage bevel gear (21), a second-stage bevel gear (22), a second-stage transmission shaft (23), a first key (24), a yawing base (25), a second nut (26), a shaft end cover (27), a second key (28) and a connecting shaft (29), the second-stage bevel gear (22) is fixedly connected with the bottom end of the second-stage transmission shaft (23), the bottom end of the second-stage transmission shaft (23) is fixedly connected with the second-stage bevel gear (22), the first key (24) is arranged at the upper end of the second-stage transmission shaft (23), the yawing base (25) is fixedly connected with the second-stage transmission shaft (23) through the first key (24), the shaft end cover (27) is fixedly connected with the machine body (110) through the second nut (26), and one end of the connecting shaft (29) is fixedly connected with the first-stage bevel gear (21);

the worm (13) is meshed with a worm wheel (14), and the primary bevel gear (21) is meshed with the secondary bevel gear (22);

the primary speed reduction part (1) is connected with the secondary speed reduction part (2) through a connecting shaft (29);

the primary transmission shaft (12) and the worm (13) are positioned on the same axis, the worm wheel (14) and the primary bevel gear (21) are positioned on the same axis, and the secondary bevel gear (22) and the secondary transmission shaft (23) are positioned on the same axis.

2. A yaw control as claimed in claim 1, wherein: the oil inlet valve (15) is made of rubber, and the oil outlet valve (18) is made of rubber.

3. A yaw control as claimed in claim 1, wherein: the observation port (17) is provided with a magnifying lens.

4. A yaw control as claimed in claim 1, wherein: the right end of the machine body (110) is provided with 4 first nuts (16).

5. A yaw control as claimed in claim 1, wherein: the primary transmission shaft (12) is a hollow cylinder, and the secondary transmission shaft (23) is a hollow cylinder.