Wind wheel locking system and wind wheel lock position detection method

Abstract

The application discloses a wind wheel locking system and a wind wheel locking position detection method, which are used for a wind generating set. The wind wheel locking system comprises a locking disc, a locking pin and a locking hole. The wind wheel locking system further comprises a plurality of induction holes, a position sensor and a control device. In the application, the induction holes, the sensor and the control device are arranged in cooperation with the locking pin and the locking hole. The locking pin can be inserted into any locking hole to lock the wind wheel. The sensor does not need to be arranged at a specific position of the corresponding locking hole. Remote wind wheel locking operation of an operator can be realized. When the wind generating set needs to be stopped and the wind wheel needs to be locked, the operator does not need to go to the wind generating set. The operation can be completed in a control center through the control device, so that the convenience and timeliness of the operation are improved.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, and in particular to a wind turbine locking system and a method for detecting the position of the wind turbine lock. Background Technology

[0002] During the operation and maintenance of wind turbine generators, it is necessary to lock the wind turbine rotor to ensure the safety of personnel. The rotor locking system includes a locking disc, locking holes, and locking pins. The locking holes are located on the locking disc and are evenly distributed around its circumference. During rotor locking, the locking disc is fixed to the rotor and rotates synchronously with it. Personnel align the locking holes on the locking disc with the locking pins by rotating the disc, and then insert the locking pins into the locking holes to lock the rotor.

[0003] The existing technology for detecting the position of the locking pin relative to the locking hole involves fixing a photosensitive element to a locking disc. The alignment part is located on the surface of the pin holder, and the photosensitive element can detect changes in ambient brightness. When the wind turbine locking disc rotates to a certain position, the detected ambient brightness dims because the photosensitive element is blocked by the alignment area. This indicates that the locking pin and the locking hole are aligned, and the wind turbine can then be locked. However, because the sensor is mounted on the locking disc, this detection method can only locate the position of a specific locking hole. If the locking pin needs to be inserted into other locking holes, a sensor (photosensitive element) needs to be installed at a specific position in the corresponding locking hole. Furthermore, this detection method has certain requirements regarding the external environment; if the lighting conditions are poor, effective positioning is difficult to achieve, leading to inaccurate positioning. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, which can only locate the position of a specific locking hole. If it is necessary to insert the locking pin into other locking holes, a sensor needs to be installed at a specific position of the corresponding locking hole. The present invention provides a wind turbine locking system and a wind turbine lock position detection method.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A wind turbine locking system for use in a wind turbine generator set, the wind turbine locking system comprising a locking disc, a locking pin, and a locking hole, and further comprising:

[0007] A plurality of sensing holes are evenly distributed along the circumference of the locking disc, and the sensing holes and the locking holes are correspondingly arranged;

[0008] A position sensor is fixedly installed on the wind turbine generator set. The position sensor is used to detect the sensing hole and generate a positioning signal.

[0009] A control device is configured to control the position sensor to detect, receive the signal, and control the locking pin to be inserted into the locking hole to lock the wind wheel.

[0010] In the present scheme, the locking pin can be inserted into any locking hole to lock the wind wheel without installing a sensor at a specific position of the corresponding locking hole, and the operator can remotely lock the wind wheel without going to the unit when the unit needs to be stopped and the wind wheel needs to be locked, which improves the convenience and timeliness of the operation.

[0011] Preferably, the wind wheel locking system further comprises a braking device, and the control device is configured to control the braking device to stop the wind wheel.

[0012] In the present scheme, the braking device is provided in the wind wheel locking system, so that the rotating wind wheel can be slowed down by the braking device, facilitating the locking of the wind wheel.

[0013] Preferably, the sensing hole is arranged outside the locking hole, and / or the sensing hole is arranged inside the locking hole.

[0014] In the present scheme, the above structure can facilitate the correspondence between the sensing hole and the locking hole, and facilitate the processing and manufacturing of the locking disc.

[0015] Preferably, the sensing hole is arranged on the line connecting the center of the locking hole and the center of the locking disc.

[0016] Preferably, the sensing hole is arranged on the midline of the line connecting the centers of the two adjacent locking holes.

[0017] In the present scheme, any of the above structures can ensure one-to-one correspondence between the locking hole and the sensing hole, so that the locking pin can be accurately inserted into the locking hole.

[0018] Preferably, the number of position sensors is 2, and only when the locking pin is aligned with the locking hole, the two position sensors can detect the sensing hole and generate the signal at the same time.

[0019] In the present scheme, the above structure can ensure the accuracy of the signal generated by the position sensor.

[0020] Preferably, the two position sensors are installed within the range of one sensing hole, and / or the two position sensors are installed within the range of any two sensing holes.

[0021] In the scheme, the above structure can further ensure the accuracy of the position signal generated by the position sensor.

[0022] Preferably, the wind wheel locking system further comprises a mounting bracket, the mounting bracket is arranged on the fixing part of the wind turbine generator system, and the position sensor is arranged on the mounting bracket.

[0023] In the scheme, the above structure can make the position sensor be more firmly arranged on the fixing part of the wind turbine generator system.

[0024] Preferably, the position sensor is any one of an optical sensor, an eddy current sensor, a capacitive sensor and an electromagnetic sensor, and the cross-sectional area of the sensing hole is not less than the minimum detection area of the position sensor.

[0025] In the scheme, the above structure can realize the judgment of the position of the bolt hole without relying on the human eye and ensure the stability of the position sensor.

[0026] A wind wheel locking position detection method using the above wind wheel locking system, the detection method comprising:

[0027] S1, the control device controls the position sensor to detect the position of the locking hole;

[0028] S2, the position sensor detects the sensing hole and generates the position signal;

[0029] S3, the control device receives the position signal and controls the locking pin to be inserted into the locking hole to lock the wind wheel.

[0030] In the scheme, the above wind wheel locking position detection method can improve the convenience and timeliness of the operation of locking the wind wheel.

[0031] The positive progress effect of the present application is that: by arranging the sensing hole, the sensor and the control device, the locking pin can be inserted into any locking hole to lock the wind wheel, without the need to install the sensor at a specific position of the corresponding locking hole, and the remote locking operation of the operator can be realized, when the unit needs to be stopped and the wind wheel is locked, the operator can not need to go to the unit, but can complete the operation through the control device in the control center, which improves the convenience and timeliness of the operation. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structure schematic diagram of the wind wheel locking system of embodiment 1 of the present application before locking the wind wheel.

[0033] Figure 2This is a schematic diagram of the wind turbine locking system of Embodiment 1 of the present invention after the wind turbine is locked.

[0034] Figure 3 This is a front structural diagram of the wind turbine locking system of Embodiment 1 of the present invention.

[0035] Figure 4 This is a three-dimensional structural diagram of the wind turbine locking system of Embodiment 1 of the present invention.

[0036] Figure 5 This is a schematic diagram of the wind turbine locking system of Embodiment 2 of the present invention before the wind turbine is locked.

[0037] Figure 6 This is a schematic diagram of the wind turbine locking system of Embodiment 2 of the present invention after the wind turbine is locked.

[0038] Figure 7 This is a front structural diagram of the wind turbine locking system of Embodiment 2 of the present invention.

[0039] Figure 8 This is a flowchart of the wind turbine lock position detection method according to Embodiment 3 of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] Lock disk 1

[0042] Lock pin 2

[0043] Locking hole 3

[0044] Sensor hole 4

[0045] Position sensor 5

[0046] Mounting bracket 6 Detailed Implementation

[0047] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0048] Example 1

[0049] like Figures 1-4 As shown, this embodiment improves a wind turbine locking system for wind turbine generator sets. The wind turbine locking system includes a locking disc 1, a locking pin 2, and a locking hole 3. The wind turbine locking system also includes several sensing holes 4, a position sensor 5, and a control device.

[0050] The sensing holes 4 are evenly distributed along the circumference of the locking disc 1. The sensing holes 4 and the locking holes 3 are correspondingly arranged. In this embodiment, the locking disc 1, the sensing holes 4 and the locking holes 3 are all circular in shape.

[0051] The number of the position sensor 5 is one, and the position sensor 5 is fixedly arranged on the fixed part of the wind turbine generator set, that is, the position sensor 5 does not rotate with the locking disc 1, and the position sensor 5 is used to detect the induction hole 4 and generate a signal when the locking pin 2 and the locking hole 3 are aligned.

[0052] The control device is used to control the position sensor 5 to detect, and the control device is also used to receive the signal and control the locking pin 2 to insert into the locking hole 3 to lock the wind wheel.

[0053] In the embodiment, the positions of the induction hole 4 and the locking hole 3 correspond to each other (for example, in the Figure 1 , the centers of the induction hole 4 and the locking hole 3 are on the same straight line, that is, the position of the induction hole 4 can represent the position of the locking hole 3), and the position sensor 5 and the locking pin 2 are also correspondingly fixedly arranged on the fixed part of the wind turbine generator set, that is, the position of the position sensor 5 represents the position of the locking pin 2. Therefore, when the position sensor 5 detects the existence of the induction hole 4, it means that the positions of the locking pin 2 and the locking hole 3 have been aligned, and after the alignment, the position sensor generates a signal to the control device to control the locking pin 2 to insert into the locking hole 3 to lock the wind wheel. Therefore, in the embodiment, the above-mentioned method can be used to insert the locking pin 2 into any locking hole 3 to lock the wind wheel, without the need to install a sensor at a specific position of the corresponding locking hole 3, and the remote locking operation of the operator can also be realized. When the unit needs to be stopped and the wind wheel needs to be locked, the operator does not need to go to the unit, but can complete the operation at the control center through the control device, thereby improving the convenience and timeliness of the operation.

[0054] As shown in Figures 1-4 , the wind wheel locking system further comprises a braking device, and the control device can control the braking device to stop the wind wheel.

[0055] In the embodiment, the braking device is arranged in the wind wheel locking system, so that the rotating wind wheel can be slowed down by the braking device, thereby facilitating the locking of the wind wheel.

[0056] As shown in Figures 1-4 , the induction hole 4 is arranged outside the locking hole 3. In the embodiment, the induction hole 4 is arranged outside the locking hole 3, which can facilitate the correspondence of the positions of the induction hole 4 and the locking hole 3, and facilitate the processing and manufacturing of the locking disc 1. Of course, those skilled in the art should understand that in other embodiments, the induction hole 4 can also be arranged inside the locking hole 3.

[0057] As shown in Figures 1-4 , the induction hole 4 is arranged on the line connecting the center of the locking hole 3 and the center of the locking disc 1.

[0058] In this embodiment, the sensing hole 4 is located on the line connecting the center of the locking hole 3 and the center of the locking disc 1, which can ensure a one-to-one correspondence between the locking hole 3 and the sensing hole 4, thereby ensuring that the locking pin 2 can be accurately inserted into the locking hole 3.

[0059] like Figure 4 As shown, the wind turbine locking system also includes a mounting bracket 6, which is installed on the fixing parts of the wind turbine generator set, and the position sensor 5 is installed on the mounting bracket 6.

[0060] In this embodiment, a mounting bracket 6 is first set on the fixing component, and then the position sensor 5 is fixedly set on the mounting bracket 6. This not only facilitates the installation of the position sensor 5, but also ensures the stability of the position sensor 5.

[0061] like Figures 1-4 As shown, the position sensor 5 is any one of photoelectric sensor, eddy current sensor, capacitive sensor, and electromagnetic sensor, and the cross-sectional area of ​​the sensing hole 4 is not less than the minimum detection area of ​​the position sensor 5.

[0062] In this embodiment, by adopting the above-described structure, it is possible to determine the position of the pin hole without relying on the human eye. The cross-sectional area of ​​the sensing hole 4 is not less than the minimum detection area of ​​the position sensor 5, which can ensure that the sensor can detect normally and thus ensure the stability of the position sensor 5.

[0063] Example 2

[0064] like Figures 5-7 As shown, this embodiment provides a wind turbine locking system, whose structure is roughly the same as the wind turbine locking system in Embodiment 1. The difference is that there are two position sensors 5. Only when the locking pin 2 is aligned with the locking hole 3 can the two position sensors 5 simultaneously detect the sensing hole 4 and generate a positioning signal. Furthermore, the two position sensors 5 are installed within the range of one sensing hole 4, or the two position sensors 5 are installed within the range of any two sensing holes 4, thereby further ensuring the accuracy of the positioning signal generated by the position sensors 5.

[0065] The sensing hole 4 is located on the perpendicular bisector of the line connecting the centers of two adjacent locking holes 3. In this embodiment, the structure ensures a one-to-one correspondence between the locking hole 3 and the sensing hole 4, thereby ensuring that the locking pin 2 can be accurately inserted into the locking hole 3.

[0066] Example 3

[0067] like Figure 8 As shown, this embodiment provides a wind turbine lock position detection method, which uses the aforementioned wind turbine locking system. The detection method includes:

[0068] S1, the control device controls the position sensor 5 to detect the position of the locking hole 3;

[0069] S2, the position sensor 5 detects the sensing hole 4 and generates a signal to the position;

[0070] S3, the control device receives the signal to the position, and controls the locking pin 2 to insert into the locking hole 3 to lock the wind wheel.

[0071] In the embodiment, the detection method of the wind wheel locking position is used, which can improve the convenience and timeliness of the wind wheel locking operation.

[0072] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A wind rotor locking system for a wind turbine generator system, comprising: The wind wheel locking system comprises a locking disc, a locking pin and a locking hole, and further comprises: a plurality of sensing holes which are uniformly distributed along the circumferential direction of the locking disc, the sensing holes and the locking holes being correspondingly arranged; a position sensor which is fixedly arranged on the wind turbine generator and is used for detecting the sensing holes and generating a signal indicating that the wind wheel is in position; a control device which is used for controlling the position sensor to detect and is used for receiving the signal indicating that the wind wheel is in position and controlling the locking pin to be inserted into the locking hole to lock the wind wheel; the sensing hole is arranged on the perpendicular bisector of the line connecting the centers of two adjacent locking holes; the number of the position sensors is two, and only when the locking pin is aligned with the locking hole, the two position sensors can simultaneously detect the sensing hole and generate the signal indicating that the wind wheel is in position; the two position sensors are installed within the range of any two sensing holes, and the positions of the two position sensors correspond to the positions of the two adjacent sensing holes.

2. The wind wheel locking system of claim 1, wherein, The wind wheel locking system further comprises a braking device, and the control device can control the braking device to stop the wind wheel.

3. The wind wheel locking system of claim 1, wherein, The wind wheel locking system further comprises a mounting bracket which is arranged on a fixing member of the wind turbine generator, and the position sensor is arranged on the mounting bracket.

4. The wind wheel locking system of claim 1, wherein, The position sensor is any one of a photoelectric sensor, an eddy current sensor, a capacitive sensor and an electromagnetic sensor, and the cross-sectional area of the sensing hole is not less than the minimum detection area of the position sensor.

5. A wind turbine lock position detection method, characterized by, The use right claim 1-4 of any one of the wind wheel locking system, the detection method comprises: S1, the control device controls the position sensor to detect the position of the locking hole; S2, the position sensor detects the sensing hole and generates the signal indicating that the wind wheel is in position; S3, the control device receives the signal indicating that the wind wheel is in position and controls the locking pin to be inserted into the locking hole to lock the wind wheel.

Images