CN215633533U - Barring gear of wind generating set and wind generating set - Google Patents

Abstract

The utility model provides a barring gear of a wind generating set and the wind generating set. The barring gear is installed on the generator side of the wind generating set. The turning gear comprises a motor, a reduction box and a transmission system. The motor is provided with a motor shaft, and the input end of the reduction gearbox is connected to the first output end of the motor shaft. The transmission system is connected with the output end of the reduction box, and the transmission system is connected to the generator. Wherein, the motor can drive the transmission system through the reduction gearbox to realize turning. The barring gear has the advantages of being easy to detach and install, convenient to operate, small in potential safety hazard and the like.

Description

Barring gear of wind generating set and wind generating set

Technical Field

The utility model relates to the technical field of wind power, in particular to a barring gear of a wind generating set and the wind generating set.

Background

With the gradual depletion of energy sources such as coal and petroleum, human beings increasingly pay more attention to the utilization of renewable energy sources. Wind energy is increasingly gaining attention as a clean renewable energy source in all countries of the world. The wind power generation device is very suitable for and can be used for generating electricity by utilizing wind power according to local conditions in coastal islands, grassland pasturing areas, mountain areas and plateau areas with water shortage, fuel shortage and inconvenient traffic. Wind power generation refers to converting kinetic energy of wind into electric energy by using a wind generating set.

With the development of large-scale wind generating sets, the advantages of both direct-drive and double-feed wind generating sets are considered in the semi-direct-drive mode, and the development direction of the future wind power field is large. The design structure integrating the generator and the gearbox (namely, the rear integrated structure) improves the transmission reliability, optimizes the structure and is an important direction for the development of the semi-direct-drive driving chain. In links such as hoisting, operation and maintenance, fault handling and the like of the fan, for example, when the fan is subjected to normal semi-annual inspection or annual inspection, the hub and the blades must be locked. At this time, the main transmission chain needs to be rotated by turning the main transmission chain, and the hub device and the blade can be locked by aligning with the hole position of the locking pin on the brake.

In the existing wind generating set with power of 3MW and below, a turning gear is mostly arranged at a brake disc of a high-speed shaft of a gearbox. Due to the ever increasing capacity of the individual fans, the electrical and mechanical facilities near the high speed shaft are becoming more and more complex under the overall requirements of high reliability, platform and compact design. The semi-direct-drive driving chain gear box with the rear integrated structure is connected with the main shaft through the coupler, and the installation space of the barring gear is omitted, so that the problems of installation form, operation convenience, noise requirements during operation, potential safety hazards and the like of the semi-direct-drive driving chain with the rear integrated structure need to be solved urgently when the barring gear is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a barring gear of a wind generating set and the wind generating set, which have the advantages of easiness in disassembly and assembly, convenience in operation, small potential safety hazard and the like.

One aspect of the utility model provides a barring gear of a wind generating set. The barring device is installed on the generator side of the wind generating set and comprises a motor, a reduction gearbox and a transmission system. The motor is provided with a motor shaft, and the input end of the reduction gearbox is connected to the first output end of the motor shaft. The transmission system is connected with the output end of the reduction gearbox, and the transmission system is connected to the generator. Wherein the motor can drive the transmission system through the reduction gearbox to realize turning.

Further, the barring gear also comprises a rotating handle. The rotating handle is mounted at a second output end of the motor shaft opposite the first output end, wherein the transmission system can be driven to turn by rotating the rotating handle.

Further, the transmission system includes an output gear and a ring gear. The output gear is connected with the output end of the reduction gearbox. The ring gear is mounted on a generator shaft of the generator and is selectively engageable with the output gear.

Further, the barring gear further comprises a mounting bracket and a rotating bracket. The mounting bracket is fixed on a box body of the generator, and a first mounting position and a second mounting position are arranged on the mounting bracket. The reduction gearbox is arranged on the rotating support, and the rotating support can be rotatably arranged at the first installation position and the second installation position of the installation support so as to switch installation between the first installation position and the second installation position. Wherein the output gear and the ring gear are in an engaged position with tooth surfaces thereof in meshing contact when the rotary bracket is mounted at the first mounting position of the mounting bracket; when the rotary bracket is mounted at the second mounting position of the mounting bracket, the output gear and the ring gear are at a separated position where tooth surfaces are separated.

Further, first mounted position includes first screw, second mounted position includes the second screw, be equipped with rotatory screw on the runing rest, rotatory screw on the runing rest selectively with on the mounting bracket first screw with the second screw aligns and fixes through rotatory bolt in order to realize with the runing rest selectively install in the mounting bracket first mounted position with the second mounted position.

Furthermore, an indication arrow is arranged on the rotating bracket, an engagement mark and a separation mark are arranged on the mounting bracket, when the arrow on the rotating bracket points to the engagement mark on the mounting bracket, the rotating screw hole on the rotating bracket is aligned with the first screw hole on the mounting bracket, and the output gear and the gear ring are in the engagement position; when the arrow on the rotating bracket points to the separation mark on the mounting bracket, the rotating screw hole on the rotating bracket is aligned with the second screw hole on the mounting bracket, and the output gear and the gear ring are located at the separation position.

Further, the number of teeth of the ring gear is larger than that of the output gear.

Further, the output end of the reduction gearbox is connected with the output gear through a flat key.

The utility model also provides a wind generating set. The wind generating set comprises a generator and the barring gear of the wind generating set.

Further, the wind generating set also comprises a semi-direct-drive driving chain gear box, and the generator and the semi-direct-drive driving chain gear box are integrated into a whole.

The barring gear of one or more embodiments of the present invention is installed on the generator side of the wind turbine generator system, and therefore, safety performance is high.

According to the barring gear of one or more embodiments of the utility model, when the motor drives the barring gear, under the acceleration action of the reduction gearbox, even if the rotation speed of the motor is low, the motor can output large power to barring the generator and the like, so that the power consumption of the motor can be reduced, and the purpose of barring can be realized through one small motor.

The barring device provided by one or more embodiments of the utility model has the advantages of simple structure, easiness in disassembly and assembly, convenience in operation, low rotating speed, small potential safety hazard and the like.

Drawings

Fig. 1 is a schematic view of a barring gear of a wind generating set according to an embodiment of the utility model;

FIG. 2 is a schematic view of a barring gear of a wind generating set mounted on a generator according to an embodiment of the utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of another perspective of the turning gear of the wind turbine generator system mounted on the generator according to one embodiment of the present invention;

FIG. 5 is a simplified partial cross-sectional schematic view taken along line B-B of FIG. 4, wherein the structure of the generator and gearbox is simplified;

FIG. 6 is a schematic view of the mounting of the reduction gearbox and the rotating bracket according to one embodiment of the utility model;

fig. 7 is a schematic diagram of a turning state according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the utility model, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The utility model provides a barring device 100 of a wind generating set. Fig. 1 discloses a schematic view of a barring gear 100 of a wind turbine generator system according to an embodiment of the utility model. The barring gear 100 of the wind generating set of the present invention may be installed at the generator side of the wind generating set as shown in fig. 2 to 5, wherein fig. 2 and 4 disclose schematic views of different viewing angles at which the barring gear 100 of the wind generating set of the present invention is installed at the generator 200, fig. 3 discloses a sectional view taken along a-a line of fig. 2, and fig. 5 discloses a simplified partial sectional view taken along B-B line of fig. 4, wherein structures of the generator 200 and the gearbox 300 are simplified in fig. 5.

As shown in fig. 1, a barring device 100 of a wind generating set according to an embodiment of the present invention includes a motor 10, a reduction gearbox 20, and a transmission system. The motor 10 has a motor shaft (not numbered) with a first output. The input end of the reduction gearbox 20 is connected to a first output end of the motor shaft, and the motor 10 can be fastened to the input end of the reduction gearbox 20, for example by bolts. The transmission system is connected to the output of the reduction gearbox 20 and to the generator 200. The motor 10 can drive the transmission system through the reduction gearbox 20, and the transmission system is connected to the generator 200, so that power can be transmitted to the generator 200 through the transmission system, the generator 200 and the gearbox 300 are driven to rotate, and finally, the fan driving chain and the wind wheel are driven to rotate, so that the motor 10 drives the turning gear.

The barring device 100 of the present invention is mounted on the generator side of the wind turbine generator system, and therefore has high safety performance.

The barring gear 100 of the present invention drives the barring gear by the motor 10, because of the acceleration action of the reduction box 20, even if the rotation speed of the motor 10 is low, it can output a large power to barring the generator 200, etc., thereby reducing the power consumption of the motor 10, and the barring purpose can be realized by one small motor 10.

The barring device 100 is simple in structure, and has the advantages of being easy to detach and install, convenient to operate, low in rotating speed, small in potential safety hazard and the like.

In some embodiments, the motor shaft of the present invention also has a second output opposite the first output. The barring device 100 of the present invention may further comprise a rotating handle 40. A rotating handle 40 is mounted on the second output end of the motor shaft. The rotating handle 40 can also be used for driving a transmission system, and the transmission system is connected to the generator 200, so that power can be transmitted to the generator 200 through the transmission system, the generator 200 and the gearbox 300 are driven to rotate, and finally, a fan driving chain and a wind wheel are driven to rotate, so that manual driving of turning is achieved.

When the barring device 100 of the present invention is used, the motor 10 may be used to drive the barring, or the barring may be manually driven by rotating the handle 40.

Referring collectively to fig. 2 and 3, in some embodiments, the transmission system of the present invention includes an output gear 31 and a ring gear 32 that may be engaged with each other, wherein the output gear 31 is connected to an output of the reduction gearbox 20, for example, the output of the reduction gearbox 20 may be connected to the output gear 31 by a flat key (not numbered). The ring gear 32 is mounted on a generator shaft 201 of the generator 200, for example, the ring gear 32 may be fastened on the generator shaft 201 by bolts. Also, the ring gear 32 can be selectively meshed with the output gear 31. When the output gear 31 is meshed with the ring gear 32, a gear pair is formed, and the ring gear 32 is fastened on the generator shaft 201, so that the parallel-stage low-speed shaft can be rotated by the ring gear 32 to realize turning.

The output gear 31 of the present invention is an output pinion gear in which the number of teeth of the ring gear 32 is larger than that of the output gear 31. Thus, a large transmission ratio can be achieved.

As shown in fig. 1 with reference to fig. 4 to 6, in some embodiments, the barring apparatus 100 of the present invention further includes a mounting bracket 51 and a rotating bracket 52, wherein the mounting bracket 51 is fixed on a box 202 of the generator 200 (as shown in fig. 4), and the reduction box 20 is mounted on the rotating bracket 52, and fig. 6 discloses a schematic mounting diagram of the reduction box 20 and the rotating bracket 52 according to an embodiment of the present invention. The mounting bracket 51 is provided with a first mounting position and a second mounting position. The rotating bracket 52 is rotatable with respect to the mounting bracket 51, and is rotatably mounted to the mounting bracket 51 at a first mounting position and a second mounting position, so that the mounting can be switched between the first mounting position and the second mounting position.

Fig. 7 discloses a turning state diagram of an embodiment of the present invention, which schematically shows the condition of the contact surface between the rotating bracket 52 and the mounting bracket 51. As shown in fig. 7 and with reference to fig. 6, in one embodiment, the first mounting position provided on the mounting bracket 51 includes a first screw hole 511, the second mounting position provided on the mounting bracket 51 includes a second screw hole 512, and the mounting bracket 51 further includes a fixing screw hole 510. The rotary bracket 52 is provided with a fixing screw hole 520 and a rotary screw hole 521. The fixing screw holes 520 of the rotating bracket 52 and the fixing screw holes 510 of the mounting bracket 51 are aligned and fixed by fixing bolts (not numbered) with which the rotating bracket 52 can be centered to rotate around the mounting bracket 51, and thus, the rotating screw holes 521 of the rotating bracket 52 can be selectively aligned with the first screw holes 511 and the second screw holes 512 of the mounting bracket 51 and fixed by rotating bolts (not numbered), and the rotating bracket 52 can be selectively mounted at the first mounting position and the second mounting position on the mounting bracket 51.

When the rotation screw hole 521 of the rotation bracket 52 is aligned with the first screw hole 511 of the mounting bracket 51, the rotation bracket 52 is fixedly mounted at the first mounting position of the mounting bracket 51 by inserting the rotation bolt into the rotation screw hole 521 of the rotation bracket 52 and the first screw hole 511 of the mounting bracket 51, respectively. When the rotating bracket 52 is mounted at the first mounting position of the mounting bracket 51, at this time, the center distance between the output gear 31 and the ring gear 32 is just at the predetermined distance where the tooth surfaces thereof are engaged, the output gear 31 and the ring gear 32 are at the engagement position P1 where the tooth surfaces thereof are in engagement contact, and the barring device 100 of the present invention is in the barring state.

When the rotation screw holes 521 of the rotation bracket 52 are aligned with the second screw holes 512 of the mounting bracket 51, the rotation bracket 52 is mounted at the second mounting position of the mounting bracket 51 by inserting rotation bolts into the rotation screw holes 521 of the rotation bracket 52 and the second screw holes 512 of the mounting bracket 51, respectively. When the rotating bracket 52 is mounted to the second mounting position of the mounting bracket 51, the center distance between the output gear 31 and the ring gear 32 is increased, and the output gear 31 and the ring gear 32 are located at the separation position P2 where the tooth surfaces are separated from each other, and the barring device 100 of the present invention is in the non-barring state.

With continued reference to fig. 7, to better distinguish the engaged position P1 from the disengaged position P2 during use, in some embodiments, an indicator arrow (not shown) may be provided on rotating bracket 52 and engaged indicator I1 and disengaged indicator I2 may be provided on mounting bracket 51. When the arrow on the rotating bracket 52 points to the meshing indicator I1 on the mounting bracket 51 through the rotation of the rotating bracket 52, it means that the rotating screw hole 521 on the rotating bracket 52 is aligned with the first screw hole 511 on the mounting bracket 51, and this indicates that the output gear 31 and the ring gear 32 are in the meshing position P1. When the arrow on the rotating bracket 52 points to the separation mark I2 on the mounting bracket 51 by the rotation of the rotating bracket 52, it means that the rotating screw hole 521 on the rotating bracket 52 is aligned with the second screw hole 512 on the mounting bracket 51, and this indicates that the output gear 31 and the ring gear 32 are at the separation position P2.

When the barring gear 100 of the present invention is assembled, a first output end of a motor shaft is fastened to an input end of the reduction gearbox 20 through a bolt, a second output end of the motor shaft is connected to the rotating handle 40, an output end of the reduction gearbox 20 is connected to the output gear 31 through a flat key, then the whole barring gear 100 is mounted on the rotating bracket 52, and the rotating bracket 52 is mounted on the mounting bracket 51, so that the weight of the whole barring gear 100 is finally borne by the mounting bracket 51. In use of the barring gear 100, the barring gear 100 is mounted on the generator side, wherein the mounting bracket 51 is directly fixed to the case 202 of the generator 200, the output gear 31 is engaged with the ring gear 32 to form a gear pair, and the ring gear 32 is fastened to the generator shaft 201 by bolts.

When the fan needs to be turned, firstly, the rotating bolt at the "separation position P2" on the rotating bracket 52 is loosened to rotate the turning device 100, and when the indication arrow on the rotating bracket 52 points to the "meshing identification I1" on the mounting bracket 51, it indicates that the output gear 31 and the ring gear 32 are at the meshing position P1, and at this time, the rotating screw hole 521 on the rotating bracket 52 is aligned with the first screw hole 511 on the mounting bracket 51, and the rotating bolt is tightened. After the motor 10 is powered on, the reduction gearbox 20 is driven to rotate, and then the transmission gear shaft is driven to rotate. Then, the rotation is transmitted to the gear ring 32 through the gear pair, so as to drive the generator 200 and the gear box 300 to rotate, and finally, the rotation of the fan driving chain and the wind wheel is driven, and the turning is realized.

When the fan does not need to be turned, the driving motor 10 is stopped, the rotating bolt at the "meshing position P1" on the rotating bracket 52 is loosened, the turning device 100 is turned, and when the indication arrow on the rotating bracket 52 points to the "separating position P2" on the mounting bracket 51, it indicates that the output gear 31 and the ring gear 32 are at the separating position P2, and at this time, the rotating screw hole 521 on the rotating bracket 52 is aligned with the second screw hole 512 on the mounting bracket 51, and the rotating bolt is tightened.

In the barring meshing process of the barring device 100, the barring device 100 can be rotated by unscrewing the rotating bolt, so that the center distance between the output gear 31 and the gear ring 32 on the generator 200 can be adjusted; the output gear 31 is driven by the rotating handle 40, so that installation and debugging can be carried out, and the tooth surface meshing contact between the output gear 31 and the tooth surface of the gear ring 32 on the generator 200 can be realized in an auxiliary manner; when the wind driven generator set is used, the motor 10 can be used for driving the barring, the barring can also be manually driven by the rotating handle 40, power is transmitted to a driving chain of the wind driven generator set through a gear pair formed by meshing the reduction gearbox 20, the output gear 31 and the gear ring 32, the running reliability and the service life of a fan transmission system are guaranteed, risks and labor intensity are reduced, and the daily installation, maintenance and debugging efficiency of the fan is improved.

The barring device 100 can be arranged on the generator side of the half direct-drive driving chain with an integrated structure, other parts in the half direct-drive driving chain do not need to be detached when the barring device is used, and the barring device is simple and convenient to operate; the speed reduction box 20 increases the speed ratio and the gear pair is used in a matched mode to realize the functions of increasing torque and reducing speed, and the motor 10 drives the auxiliary mode of the rotating handle 40, so that the operation is convenient, the noise in operation is low, the rotating speed is low, the noise in operation is low, and the potential safety hazard is small.

The transmission system of the barring gear 100 of the utility model adopts a gear transmission mode, so that the bearing capacity is large and the reliability is high; the reduction box 20 increases the transmission system that the gear pair cooperation was used of velocity ratio, can design very big reduction ratio in narrow and small space, makes the total velocity ratio of wind generating set drive chain be greater than 300 velocity ratios of gear box, reaches the at utmost and reduces the barring moment, reduces motor 10 power, reduces drive arrangement's installation space, reduces equipment cost's purpose.

When the barring device 100 is used, the center distance between the output gear 31 and the gear ring 32 can be adjusted by rotating the handle 40 and the rotating bolt so as to realize the operations of meshing contact or separation of the tooth surfaces of the output gear 31 and the gear ring 32 and the like, and the problems of clamping stagnation and the like can be avoided; in addition, the assembly and disassembly are simple, and the maintainability is strong.

The utility model also provides a wind generating set. The wind generating set comprises a generator 200 and the barring gear 100 of the wind generating set according to each embodiment. The barring gear 100 of the wind turbine generator set may be mounted on the generator 200.

In some embodiments, the wind generating set of the present invention further comprises a half direct drive train gearbox 300, wherein the generator 200 and the half direct drive train gearbox 300 are integrated to form a rear integrated half direct drive train structure.

The wind turbine generator system of the present invention has substantially similar advantageous technical effects to the barring gear 100 described above, and therefore, the details thereof are not repeated herein.

The turning gear of the wind generating set and the wind generating set provided by the utility model are described in detail above. The turning gear of the wind generating set and the wind generating set of the present invention are illustrated herein by using specific examples, and the above description of the embodiments is only for helping understanding the core idea of the present invention, and is not intended to limit the present invention. It should be noted that, for those skilled in the art, various improvements and modifications can be made without departing from the spirit and principle of the present invention, and these improvements and modifications should fall within the scope of the appended claims.

Claims (10)

1. The utility model provides a wind generating set's barring gear which characterized in that: the barring device is installed on the generator side of the wind generating set, and comprises:

a motor having a motor shaft;

the input end of the reduction gearbox is connected to the first output end of the motor shaft; and

a transmission system connected with the output end of the reduction gearbox and connected to the generator,

wherein the motor can drive the transmission system through the reduction gearbox to realize turning.

2. A barring gear as claimed in claim 1 wherein: further comprising:

a rotating handle installed at a second output end of the motor shaft opposite to the first output end,

wherein the transmission system can be driven by rotating the rotating handle to realize turning.

3. The barring gear according to claim 1 or 2, wherein: the transmission system includes:

the output gear is connected with the output end of the reduction box; and

a ring gear mounted on a generator shaft of the generator and selectively engageable with the output gear.

4. A barring gear as claimed in claim 3 wherein: further comprising:

the mounting bracket is fixed on a box body of the generator and is provided with a first mounting position and a second mounting position; and

a rotating bracket on which the reduction gearbox is mounted, the rotating bracket being rotatably mountable to the mounting bracket at the first mounting position and the second mounting position for mounting switching between the first mounting position and the second mounting position,

wherein the output gear and the ring gear are in an engaged position with tooth surfaces thereof in meshing contact when the rotary bracket is mounted at the first mounting position of the mounting bracket; when the rotary bracket is mounted at the second mounting position of the mounting bracket, the output gear and the ring gear are at a separated position where tooth surfaces are separated.

5. A barring gear as claimed in claim 4 wherein: first mounted position includes first screw, second mounted position includes the second screw, be equipped with rotatory screw on the runing rest, rotatory screw on the runing rest selectively with on the mounting bracket first screw with the second screw is aligned and is fixed in order to realize with through rotatory bolt the runing rest selectively install in the mounting bracket first mounted position with the second mounted position.

6. A barring gear as claimed in claim 5 wherein: an indication arrow is arranged on the rotating bracket, an engagement mark and a separation mark are arranged on the mounting bracket, when the arrow on the rotating bracket points to the engagement mark on the mounting bracket, the rotating screw hole on the rotating bracket is aligned with the first screw hole on the mounting bracket, and the output gear and the gear ring are positioned at the engagement position; when the arrow on the rotating bracket points to the separation mark on the mounting bracket, the rotating screw hole on the rotating bracket is aligned with the second screw hole on the mounting bracket, and the output gear and the gear ring are located at the separation position.

7. A barring gear as claimed in claim 3 wherein: the number of teeth of the gear ring is larger than that of the output gear.

8. A barring gear as claimed in claim 3 wherein: the output end of the reduction gearbox is connected with the output gear through a flat key.

9. A wind generating set is characterized in that: which comprises a generator and a barring gear of a wind turbine generator set according to any one of claims 1 to 8.

10. The wind turbine of claim 9, wherein: the wind power generation system further comprises a semi-direct-drive driving chain gear box, and the generator and the semi-direct-drive driving chain gear box are integrated into a whole.

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