A mechanical wind vane auxiliary calibration device for a wind turbine

Abstract

A kind of wind turbine mechanical wind vane auxiliary calibration device. At present, wind vane installation has no any special tool, and wind vane 0 ° calibration work is carried out by maintenance personnel visual inspection, with an error of about 20 °, and special wind vane calibration tool needs to be made. The utility model comprises: adjustable shell and laser pen support, the laser pen support is fixed on the upper part of the adjustable shell for inserting laser pen, and the adjustable shell is used to be sleeved on the wind vane to fix the wind vane;The adjustable shell includes a bottom plate, the bottom plate is respectively fixed with sliding shell by bolt on both sides, the sliding shell is provided with an outer arm, and the end of the outer arm is fixed with a chuck. The utility model is used for wind turbine mechanical wind vane auxiliary calibration.

Description

Technical Field

[0001] This utility model relates to a mechanical wind vane auxiliary calibration device for wind turbine units. Background Technology

[0002] The wind direction of some wind turbines was inconsistent with that of the surrounding turbines, leading to the initial assessment that the 0° wind vane was inaccurate. On-site inspection of the turbines with substandard power curves revealed that the wind vane base and metal casing were loose. Currently, no specialized tools are available for wind vane installation, and 0° calibration is performed entirely by visual inspection by maintenance personnel, resulting in an error of approximately 20°. Therefore, a specialized wind vane calibration tool needs to be developed. Utility Model Content

[0003] The purpose of this invention is to provide a mechanical wind vane auxiliary calibration device for wind turbine units.

[0004] The above objectives are achieved through the following technical solutions: A mechanical wind vane auxiliary calibration device for wind turbines includes an adjustable housing and a laser pointer holder. The laser pointer holder is fixed to the upper part of the adjustable housing for inserting a laser pointer, and the adjustable housing is used to fit over the wind vane to fix it in place. The adjustable housing includes a base plate, which is fixed to the sliding housing on both sides by bolts. The sliding housing has an extension arm, and a clamp is fixed to the end of the extension arm.

[0005] The aforementioned mechanical wind vane auxiliary calibration device for wind turbine units includes a laser pen holder comprising two support plates and a pen ring. The two ends of the pen ring are fixed with connecting shafts, which pass through the support plates and are threadedly connected to nuts.

[0006] The aforementioned mechanical wind vane auxiliary calibration device for wind turbine units uses a K-type clamp.

[0007] The aforementioned mechanical wind vane auxiliary calibration device for wind turbine units has a stepped sliding outer shell with a wind vane fixing bolt and an outer shell fixing bolt threadedly connected to it. Beneficial effects

[0008] 1. This utility model can achieve 0° calibration of the wind vane, effectively solving the problem of substandard power curves of wind turbine units.

[0009] 2. This utility model features an adjustable outer shell, which allows for the clamping of the wind vane and is applicable to different models of wind vanes. Attached Figure Description

[0010] Appendix Figure 1 This is the front view of this utility model; Appendix Figure 2 This is a side view of the present invention; Appendix Figure 3 This is a top view of the present invention; Appendix Figure 4 This is the front view of the wind vane clamping device of this utility model; Appendix Figure 5 This is a side view of the wind vane clamping mechanism of this utility model; Appendix Figure 6 This is a schematic diagram of the structure of this utility model in use; In the diagram: 1. Pen ring; 2. Connecting shaft; 3. Laser pointer; 4. Support plate; 5. Base plate; 6. Extending arm; 7. Wind vane fixing bolt; 8. Sliding housing; 9. Locking bolt; 10. Clamp; 11. Housing fixing bolt; 12. Sliding hole; 13. Wind vane housing; 14. Wind vane; 15. Wind vane bracket; 16. First wind vane; 17. Second wind vane; 18. Locking nut. Detailed Implementation

[0011] A mechanical wind vane auxiliary calibration device for wind turbines includes an adjustable housing and a laser pointer holder. The laser pointer holder is fixed to the upper part of the adjustable housing for inserting a laser pointer 3. The adjustable housing is used to fit over the wind vane and fix the wind vane 14. The adjustable housing includes a base plate 5, which is fixed to the sliding housing 8 on both sides by bolts. The sliding housing has a sliding hole 12. A locking bolt is fixed on the base plate. The locking bolt passes through the sliding hole and is threadedly connected to the locking nut to fix the position of the sliding housing. The sliding housing has an extension arm 6, and a clamp 10 is fixed at the end of the extension arm.

[0012] The aforementioned mechanical wind vane auxiliary calibration device for wind turbine units includes a laser pen holder comprising two support plates 4 and a pen ring 1. The two ends of the pen ring are fixed with connecting shafts 2, which pass through the support plates and are threadedly connected to nuts.

[0013] The aforementioned mechanical wind vane auxiliary calibration device for wind turbine units uses a K-type clamp.

[0014] The aforementioned mechanical wind vane auxiliary calibration device for wind turbine units has a stepped sliding outer shell with a wind vane fixing bolt 7 and an outer shell fixing bolt 11 threadedly connected to it.

[0015] When clamping and fixing the wind vane, first insert the laser pointer into the pen ring, then put the device on the wind vane, loosen the locking nut 18, then slide the sliding shell so that the clamp holds the wind vane, then tighten the locking nut, then tighten the wind vane fixing nut and point the laser pointer head in the same direction as the wind vane head.

[0016] Calibration method: (1) Measure the position of the center point of the wind vane; Use a measuring tape to measure the distance D between the center point of the first wind vane 16 and the center point of the second wind vane. Take half of this distance as D / 2 and keep it for later use. (2) Measure the position of the laser reference point of the mechanical wind vane calibration device; Use a measuring tape to measure the width of the cabin as H, and mark the center point as H / 2 from the edge of the cabin. Measure D / 2 to both sides from the center point of the cabin and mark the laser reference point of the mechanical wind vane 0° calibration tool. (3) Install a mechanical wind vane 0° calibrator; Install a mechanical wind vane calibration device on the second wind vane, put the device on the wind vane, then slide the sliding shell so that its clamp holds the wind vane, then tighten the locking nut, then tighten the wind vane fixing nut and point the laser pointer head in the same direction as the wind vane head. (4) Observe the control panel of the engine room and adjust the wind vane angle to zero; Observe the wind vane angle on the control panel of the cabin cabinet. When the angle is zero degrees, tighten the outer shell fixing nut to fix the wind vane outer shell 13 to the device, ensuring that the wind vane angle is at zero degrees and will not change. (5) Zero the wind vane using a mechanical wind vane calibration device; Turn on the laser pointer and use an open-end wrench to rotate the wind vane casing so that the laser point is aligned with the wind vane reference point. At this point, the wind vane is completely parallel to the position of the nacelle hub side, and the 0° calibration of the wind vane is complete. (6) Remove the mechanical wind vane calibration device; Loosen the wind vane housing fixing nut and the wind vane fixing nut in sequence, then remove the mechanical wind vane calibration device, put the tools into the tool bag, and clean up the work site.

Claims

1. A mechanical wind vane auxiliary calibration device for wind turbine units, characterized in that: Its components include an adjustable housing and a laser pointer holder. The laser pointer holder is fixed to the upper part of the adjustable housing for inserting a laser pointer. The adjustable housing is used to fit over the wind vane to fix the wind vane. The adjustable housing includes a base plate, which is fixed to the sliding housing on both sides by bolts. The sliding housing has an extension arm, and a clamp is fixed to the end of the extension arm.

2. The wind turbine mechanical wind vane auxiliary calibration device according to claim 1, characterized in that: The laser pointer holder includes two support plates and a pen ring. The two ends of the pen ring are fixed with connecting shafts, which pass through the support plates and are threadedly connected to nuts.

3. The wind turbine mechanical wind vane auxiliary calibration device according to claim 2, characterized in that: The chuck is a K-type chuck.

4. The wind turbine mechanical wind vane auxiliary calibration device according to claim 3, characterized in that: The sliding outer shell is a stepped outer shell, with a weather vane fixing bolt and an outer shell fixing bolt threaded onto it.

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