CN216588965U

CN216588965U - Wind turbine generator system barring gear

Info

Publication number: CN216588965U
Application number: CN202220223419.3U
Authority: CN
Inventors: 李保华; 王靖宇
Original assignee: Cooper New Energy Co ltd
Current assignee: Cooper New Energy Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-05-24
Anticipated expiration: 2032-01-27

Abstract

The utility model provides a wind turbine generator system barring device, including installing the ring gear on the generator rotor and installing the rotatory actuating mechanism of drive ring gear on generator stator, wherein install the ring gear on the ring gear connecting seat and fix at the rotor terminal surface, install actuating mechanism on the drive connecting seat and pass through locking mechanism and fix at the stator terminal surface, the drive connecting seat is connected with the coaxial rotation of ring gear connecting seat, and locking mechanism includes the reaction arm with drive connecting seat fixed connection, reaction arm fixed mounting seat and adjusting part, adjusting part includes that adjusting screw and cover establish the clamp plate on adjusting screw, and adjusting screw one end is passed in the screw rod jack that sets up on the reaction arm screw in stator terminal surface. The whole wind turbine turning gear is integrally arranged, and the wind turbine turning gear is compact in structure and convenient to install.

Description

Wind turbine generator system barring gear

Technical Field

The utility model relates to a wind power generation equipment fortune dimension technical field, concretely relates to wind turbine generator system barring gear.

Background

The blade is a part for capturing wind energy in wind power equipment, and with the increasing importance of the state on the new energy industry, the capacity of a wind turbine generator is increased, the size of the blade is increased, and higher requirements are provided for the installation of the blade. At present, the blades are usually horizontally lifted, and the hub and the blade mounting holes are required to be horizontally positioned. Because the wind turbine generator does not have the capacity due to the space and cost problems of the wind turbine generator, the turning gear for driving the hub to rotate and locking the hub is required, and especially when the first blade and the second blade are installed, the turning gear is required to have the capacity.

As shown in fig. 1, for improving wind energy capture power, a certain pitch angle is often present between the whole wind turbine and a horizontal plane, when the barring device is hoisted, the crane is difficult to adjust the angle of the barring device according to the pitch angle of the whole wind turbine, and is limited by a narrow space inside a cabin, the barring device is also difficult to adjust the pitch angle through manual work after entering the cabin, the installation difficulty of the whole wind turbine is increased, and therefore, the barring device convenient to install is more needed to improve the installation efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of prior art, provide a simple to operate, compact structure's wind turbine generator system barring gear, can adapt to this not big spatial condition in the cabin, effectively improve whole wind turbine generator system's installation effectiveness.

For realizing above-mentioned purpose, the technical scheme of the utility model be realized like this, a wind turbine generator system barring device, including installing the ring gear on the generator rotor and installing the actuating mechanism that drives the ring gear rotation on generator stator, wherein the ring gear passes through the ring gear connecting seat to be fixed at the rotor terminal surface, actuating mechanism passes through the drive connecting seat to be fixed at the stator terminal surface, the drive connecting seat is connected with the coaxial rotation of ring gear connecting seat, the drive connecting seat passes through locking mechanism and realizes being connected with the stator, locking mechanism include with drive connecting seat fixed connection's the counter-force arm, counter-force arm fixed mounting and adjusting part, adjusting part includes that adjusting screw and cover establish the clamp plate on adjusting screw, adjusting screw one end is passed in the screw rod jack that sets up on the counter-force arm screw in stator terminal surface.

Specifically, a hand crank is installed at one end, far away from the end face of the stator, of the adjusting screw rod.

Specifically, the gear ring is an inner gear ring, the corresponding driving mechanism comprises a driving gear meshed with the inner gear ring, and the driving gear rotates through a hydraulic motor connected with the speed reducer.

Specifically, the barring gear further comprises an encoder, and the encoder is used as a rotary rotating shaft for driving the connecting seat and the gear ring connecting seat.

Specifically, actuating mechanism is the annular array distribution including being no less than two drive gear on the drive connecting seat.

Specifically, the quantity of reaction arm is two sets of and is located the left and right sides of drive connecting seat respectively, and two sets of reaction arms are located the same diameter of stator terminal surface.

Specifically, a plurality of hoisting rings are further mounted on the driving connecting seat.

The wind turbine turning gear obtained by the technical scheme has the beneficial effects that:

1. the whole barring device of the wind turbine generator is integrally designed, and the barring device is close to an installation surface by utilizing the pressing plate, so that the installation efficiency is improved, and the installation precision is ensured;

2. the barring is realized by utilizing the inner gear ring and the driving gear positioned in the inner gear ring, compared with the existing base that the driving gear is positioned outside the gear ring, the volume and the weight of the whole barring device are reduced, the hoisting efficiency is provided, the device can adapt to the originally small space in the cabin, and the later-stage overhaul by maintainers is facilitated;

3. utilize the encoder to realize the rotatory control of drive gear, guarantee that wheel hub's position is controllable, effectively improved the efficiency of whole barring process.

Drawings

Fig. 1 is a schematic structural diagram of the installation of the whole wind turbine.

Fig. 2 is a schematic perspective view of the wind turbine barring gear after the wind turbine barring gear is mounted on the generator.

Fig. 3 is a front view of the wind turbine barring gear after the wind turbine barring gear is installed on the generator.

Fig. 4 is a schematic structural diagram of the wind turbine barring gear.

Fig. 5 is a schematic diagram of the turning gear driving principle of the wind turbine generator.

In the figure, 1, a generator; 2. a stator; 3. a gear ring connecting base; 4. a reaction arm fixing seat; 5. a reaction arm; 6. an adjustment assembly; 6a, adjusting a screw rod; 6 b; pressing a plate; 7. a drive gear; 8. a ring gear; 9. a driving connection seat; 10. lifting a lifting ring; 11. an encoder; 12. a gear ring mounting bolt; 13. a hub; 14. a transmission system; 15. a hydraulic motor.

Detailed Description

The utility model aims to solve the problem that the inconvenient installation of barring device, the wind turbine generator system barring device of an integrated design is proposed for this reason, through install ring gear 8 on generator 1 rotor and install drive ring gear 8 rotatory actuating mechanism realization barring on generator stator 2, wherein install ring gear 8 on ring gear connecting seat 3 and fix at the rotor end face, the actuating mechanism who installs on drive connecting seat 9 passes through locking mechanism and fixes at the stator end face, drive connecting seat 9 is connected with 3 coaxial rotations of ring gear connecting seat, locking mechanism can adapt to the angle of pitch of generator stator 2 (rotor) terminal surface and horizontal plane in locking process, make drive connecting seat 9 and ring gear connecting seat 3 press close to installation face (stator 2 terminal surface or rotor end face), high durability and convenient installation, the manpower loss has been reduced.

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

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

As shown in fig. 2-4, a wind turbine barring gear is installed on a generator 1, the generator 1 includes a stator 2 and a rotor coaxially arranged with the stator 2 and located at an inner ring of the stator 2, the barring gear of the wind turbine generator realizes barring through a gear ring 8 arranged on a rotor and a driving mechanism arranged on a stator 2 and used for driving the gear ring 8 to rotate, wherein a gear ring 8 arranged on a gear ring connecting seat 3 is fixed on the end surface of a rotor, a driving mechanism arranged on a driving connecting seat 9 is fixed on the end surface of a stator through a locking mechanism, the driving connecting seat 9 is coaxially and rotatably connected with the gear ring connecting seat 3, the locking mechanism comprises a counter-force arm 5 fixedly connected with the driving connecting seat 9, a counter-force arm fixing seat 4 and an adjusting component 6, the adjusting component 6 comprises an adjusting screw 6a and a pressing plate 6b sleeved on the adjusting screw 6a, and one end of the adjusting screw 6a penetrates through the reaction arm 5 and is screwed into a screw jack arranged on the end face of the stator 2.

In the rotating process of the adjusting screw 6a, the pressing plate 6b gradually moves towards the end face of the stator 2 along the axial direction of the adjusting screw 6a to press the reaction arm 5, so that the driving connecting seat 9 fixedly connected with the reaction arm 5 and the gear ring connecting seat 3 rotationally connected with the driving connecting seat 9 are inclined towards the end face of the stator 2 (rotor), and finally are parallel to the end face of the stator 2 (rotor).

The mode that drive adjusting screw 6a is rotatory has the multiple, both can adopt manual drive, also can adopt mechanical drive, for example keep away from stator 2 terminal surface one end at adjusting screw 6a and install the hand crank, and the staff that is located the cabin realizes adjusting screw 6 a's rotation through rotating the hand crank.

The counter arm fixing mounts 4 are selected in accordance with the end surfaces of the stator 2, wherein in one embodiment the counter arm fixing mounts 4 are also bolted.

Specifically, the gear ring 8 is an inner gear ring, the corresponding driving mechanism comprises a driving gear 7 engaged with the inner gear of the gear ring 8, and the driving gear 7 rotates through a hydraulic motor 15 connected with the speed reducer.

The hydraulic motor 15 is fixed on one surface of the driving connecting seat 9, which is back to the gear ring 8, and an output shaft of the hydraulic motor 15 penetrates through the driving connecting seat 9 and is connected with the driving gear 7 in a key mode.

In order to accurately ensure the rotation angle, the barring device further comprises an encoder 11, specifically, the encoder 11 is used as a rotation rotating shaft for driving the connecting seat 9 and the gear ring connecting seat 3, so that the rotation angle of the barring can be monitored, and the blade mounting hole on the hub 13 can be accurately rotated to the horizontal position so as to mount the blade.

When the hydraulic motor 15 rotates, the driving gear 7 rotates to drive the gear ring 8 to rotate, the gear ring 8 fixed on the rotor enables the hub 13 to rotate through the transmission system 14 of the wind turbine generator, the purpose of turning is achieved, and meanwhile the hydraulic motor 15 can be stopped at any time and locked in position through the design of a hydraulic loop according to the feedback of the encoder 11.

Of course, the hydraulic motor 15 can be replaced by an electric motor, and the transmission system 14 is known in the art and will not be described further herein.

In order to avoid the driving assembly from being out of order and affecting turning, the driving mechanism comprises at least two driving gears 7, wherein in one embodiment, the number of the driving gears 7 is four, and the driving gears 7 are distributed on the driving connecting seat 9 in an annular array.

The quantity of the reaction arms 5 is two sets of reaction arms 5 which are respectively positioned at the left side and the right side of the driving connecting seat 9, and the two sets of reaction arms 5 are positioned on the same diameter of the end surface of the stator 2.

Specifically, the reaction arm 5 is triangular, two corners of the reaction arm are fixed on the driving connecting seat 9, and the other corner of the reaction arm is provided with the reaction arm fixing seat 4.

After the adjusting component 6 draws the driving connecting seat 9 and the gear ring connecting seat 3 close to the end face of the stator 2 (rotor), the whole wind turbine barring gear is further fixed by the reaction arm fixing seat 4.

In order to facilitate the hoisting of the barring gear, a plurality of hoisting rings 10 are further installed on the driving connecting seat 9. And ring gear mounting bolts 12 are distributed on the ring gear 8 in an annular array manner, and the ring gear mounting bolts 12 penetrate through the ring gear connecting seat 3 and are fixedly connected with the rotor.

The installation and use process of the wind turbine barring gear is described in detail below.

1. Installation:

1) firstly, the whole barring gear (except a locking component and a reaction arm fixing seat) of the wind turbine generator is suspended at the tail part of the generator close to the installation position by using a hoisting device;

2) the turning device is integrally pulled close to the mounting surface by using the adjusting assembly, and then is fixed by using the counterforce arm fixing seat (in the process, the lifting equipment controls the height and the front and back positions of the whole wind turbine generator turning device so as to align the counterforce arm fixing seat with a force arm mounting hole corresponding to the end surface of the stator);

3) the gear ring connecting base and the rotor of the generator are fixedly screwed by utilizing the gear ring connecting bolt;

4) the hoisting device is removed and the hydraulic lines and cables etc. of the hydraulic motor are installed (if an electric motor is used, only the cables are installed).

2. Use of:

and a driver of a hydraulic oil source or a motor is started, the driving gear drives the gear ring to rotate through meshing with the gear ring, and the gear ring is fixed on a rotor of the generator, so that the rotation of the hydraulic motor of the barring gear finally realizes the barring rotation effect of the unit transmission chain.

The whole wind turbine turning gear adopts an integrated design, and the adjustment assembly in the locking mechanism is used for realizing the close connection with the mounting surface, so that the labor is saved, and the structure is simple.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The utility model provides a wind turbine generator system barring gear, its characterized in that, is including installing the ring gear on the generator rotor and installing the actuating mechanism that drives the ring gear rotation on generator stator, wherein installs the ring gear on the ring gear connecting seat and fix at the rotor terminal surface, installs actuating mechanism on the drive connecting seat and passes through locking mechanism and fix at the stator terminal surface, and the drive connecting seat is connected with the coaxial rotation of ring gear connecting seat, and locking mechanism includes the counter force arm with drive connecting seat fixed connection, counter force arm fixed mounting and adjusting part, adjusting part includes that adjusting screw and cover establish the clamp plate on adjusting screw, and adjusting screw one end is passed in the screw rod jack that sets up on the counter force arm screw in stator terminal surface.

2. The wind turbine barring gear according to claim 1, wherein a hand crank is mounted at one end of the adjusting screw, which is far away from the stator end face.

3. The wind turbine barring gear according to claim 1, wherein the gear ring is an inner gear ring, and the corresponding driving mechanism comprises a driving gear engaged with the inner gear of the gear ring, the driving gear being rotated by a hydraulic motor connected to a reducer.

4. The wind turbine barring device according to claim 1, further comprising an encoder as a rotation shaft that drives the connecting seat and the ring gear connecting seat.

5. The wind turbine barring device according to claim 3, wherein the drive mechanism comprises no less than two drive gears distributed in an annular array on the drive connection seat.

6. The wind turbine turning gear according to claim 1, wherein the number of the reaction arms is two and the two reaction arms are respectively located at the left and right sides of the driving connection seat, and the two reaction arms are located on the same diameter of the end face of the stator.

7. The wind turbine barring device according to claim 1, wherein a plurality of lifting rings are further mounted on the driving connection seat.