A wind vane zero position calibration device and calibration method for a wind turbine generator set

Abstract

The present invention provides a wind vane zero-position calibration device and calibration method for a wind turbine generator set, which relates to the technical field of wind power generation wind tooling, and is designed to solve the problem of extremely inaccurate zero-position calibration of wind vanes in existing wind turbine generator sets. The wind vane zero-position calibration device for a wind turbine generator set includes a transmitting end tooling, a laser transmitter, and a receiving end tooling. The transmitting end tooling is used to be fixedly connected to the wind vane, and the transmitting end tooling is provided with a scale line corresponding to the marking N line of the wind vane. The laser transmitter is installed on the transmitting end tooling, and the pitch angle of the laser transmitter is adjustable; the receiving end tooling is used to be installed on the front side of the cabin of the wind turbine generator set, and the receiving end tooling includes a target rod, and the position of the target rod is adjustable along the radial direction of the cabin, and the target rod is used to receive the laser emitted by the laser transmitter. The present invention makes the zero-position calibration of the wind vane of a wind turbine generator set accurate.

Description

Technical Field

[0001] The invention relates to the technical field of wind-aligned tooling for wind turbine generator sets, and in particular to a zero-position calibration device and a calibration method for a wind vane of a wind turbine generator set. Background Art

[0002] The wind vane is installed on the top of the nacelle of the wind turbine and is mainly used to measure the wind direction information of the environment where the wind turbine is located. When the main control system of the wind turbine receives the above information, it will promptly start the yaw system to yaw the wind turbine so that the impeller of the wind turbine can capture wind energy to the greatest extent, thereby effectively increasing the power generation of the wind turbine.

[0003] At present, the installation of wind vanes is mostly carried out in wind farms, and there are directional requirements for the installation of wind vanes. Since the wind vane needs to be calibrated to zero position after installation, the N line marked on the wind vane is required to be parallel to the axis of the cabin during installation. Limited by the on-site conditions, the existing wind vane zero position calibration process is mostly completed by visual inspection. This process is greatly affected by subjective factors, and the installation accuracy is also extremely inaccurate, which seriously affects the wind-resistance effect of the unit, thereby losing power generation. Summary of the invention

[0004] The first object of the present invention is to provide a wind turbine wind vane zero position calibration device to solve the technical problem that the existing wind turbine wind vane zero position calibration is extremely inaccurate.

[0005] The wind vane zero position calibration device of the wind turbine generator set provided by the present invention comprises a transmitting end tooling, a laser transmitter and a receiving end tooling, wherein the transmitting end tooling is used to be fixedly connected to the wind vane, the transmitting end tooling is provided with a scale line corresponding to the marking N line of the wind vane, the laser transmitter is installed on the transmitting end tooling, and the pitch angle of the laser transmitter is adjustable; the receiving end tooling is used to be installed on the front side of the cabin of the wind turbine generator set, the receiving end tooling comprises a target rod, the position of the target rod is adjustable along the radial direction of the cabin, and the target rod is used to receive the laser emitted by the laser transmitter.

[0006] Furthermore, the transmitting end tooling includes a clamp and a rotating seat arranged on the clamp, the transmitting end tooling is fixed to the weather vane through the clamp, the rotating seat includes a fixed part for fixedly connected to the clamp, a rotating part rotatably arranged on the fixed part, and a locking part for fixing the relative position of the rotating part and the fixed part, the laser emitter is installed on the rotating part, and the rotating part is used to adjust the pitch angle of the laser emitter.

[0007] Furthermore, the clamp includes a fixed half ring, a movable half ring and a locking assembly, the first end of the movable half ring is rotatably connected to the first end of the fixed half ring, the second end of the movable half ring is detachably arranged from the second end of the fixed half ring, and the locking assembly is used to fix the second end of the movable half ring to the second end of the fixed half ring.

[0008] Furthermore, the fixed part includes a first support arm, a base, and a second support arm connected in sequence in a U shape, the fixed part is fixedly connected to the fixed half ring through the base, and the rotating part is rotatably arranged between the first support arm and the second support arm; the rotating part is provided with a mounting hole, and the laser emitter is fixedly arranged in the mounting hole.

[0009] Furthermore, the fixing half ring is provided with a positioning groove, the base is provided with a positioning block, and the positioning block is plugged into and matched with the positioning groove.

[0010] Furthermore, the rotating part is provided with a fixing screw hole connected to the mounting hole, and the rotating seat also includes a fixing bolt, which is screwed into the fixing screw hole and can abut against the outer surface of the laser emitter located in the mounting hole.

[0011] Furthermore, the receiving end tooling also includes an adjusting rod and multiple fixed rods, the target rod and the multiple fixed rods are all installed on the adjusting rod, and along the length direction of the adjusting rod, the positions of the target rod and the multiple fixed rods are adjustable; the fixed rod is at an angle to the target rod, and the multiple fixed rods are used to be respectively inserted into multiple axial holes on the main shaft end face on the front side of the cabin.

[0012] Furthermore, the adjusting rod is provided with scale values ​​arranged along the length direction thereof.

[0013] Furthermore, the target rod is a telescopic rod; or, the target rod includes a plurality of sub-rods arranged along its length direction, and the plurality of sub-rods are detachably connected to each other.

[0014] The beneficial effects brought by the wind vane zero position calibration device of the wind turbine generator set of the present invention are:

[0015] By setting a wind vane zero-position calibration device for a wind turbine generator set mainly composed of a transmitting end tooling, a laser transmitter and a receiving end tooling, when it is necessary to perform zero-position calibration on the wind vane of the wind turbine generator set, the transmitting end tooling can be fixed on the wind vane, and when fixed, the scale line set on the transmitting end tooling is aligned with the marking N line of the wind vane; the laser transmitter is installed on the transmitting end tooling; the receiving end tooling is installed on the front side of the cabin of the wind turbine generator set, and the radial position of the target rod along the cabin is adjusted to make the distance of the target rod deviating from the cabin axis and the distance of the wind vane mounting base deviating from the cabin axis consistent, so that the connection line between the target rod and the laser transmitter is parallel to the cabin axis; then, by loosening the bolts of the wind vane mounting base, the fixing of the mounting base is released to adjust the direction of the wind vane, and at the same time, the pitch angle of the laser transmitter is adjusted until the laser emitted by the laser transmitter is projected onto the target rod of the receiving end tooling, and then the wind vane mounting base is fixed to achieve the zero-position calibration of the wind vane.

[0016] The wind turbine wind vane zero position calibration device effectively solves the problem of inaccurate on-site zero position calibration of the wind turbine wind vane, improves the calibration accuracy, and is simple to operate, and can realize rapid zero position calibration of the wind vane.

[0017] The second object of the present invention is to provide a method for zero-position calibration of a wind vane of a wind turbine generator set, so as to solve the technical problem that the existing zero-position calibration of a wind vane of a wind turbine generator set is extremely inaccurate.

[0018] The wind vane zero position calibration method of the wind turbine generator set provided by the present invention utilizes the wind vane zero position calibration device of the wind turbine generator set to calibrate the zero position of the wind vane, and comprises the following steps:

[0019] Install the laser transmitter on the transmitter tooling, and fix the transmitter tooling on the wind vane so that the scale line set on the transmitter tooling is aligned with the N line marked on the wind vane;

[0020] The receiving end tooling is installed on the front side of the nacelle of the wind turbine generator set, and the position of the target rod along the radial direction of the nacelle is adjusted so that the distance of the target rod deviating from the axis of the nacelle is consistent with the distance of the installation base of the wind vane deviating from the axis of the nacelle;

[0021] By loosening the bolts of the installation base of the weather vane, the installation base is released to adjust the direction of the weather vane, and the pitch angle of the laser transmitter is adjusted until the laser emitted by the laser transmitter is projected onto the target pole of the receiving end tooling;

[0022] Fix the mounting base of the wind vane to complete the zero position calibration of the wind vane.

[0023] The beneficial effects of the zero position calibration method of the wind vane of a wind turbine generator set of the present invention are:

[0024] The wind turbine wind vane zero position calibration method utilizes the above-mentioned wind turbine wind vane zero position calibration device to calibrate the zero position of the wind vane. Accordingly, the wind turbine wind vane zero position calibration method has all the advantages of the above-mentioned wind turbine wind vane zero position calibration device, which will not be described one by one here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 A front view of the installation of a wind vane zero position calibration device for a wind turbine generator set on a nacelle provided by an embodiment of the present invention;

[0027] Figure 2 for Figure 1 A magnified view of the local structure at point A in the middle;

[0028] Figure 3 A top view of the installation of a wind vane zero position calibration device for a wind turbine generator set on a nacelle provided by an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of the transmitting end tooling and the laser transmitter of the wind vane zero position calibration device of a wind turbine generator set provided by an embodiment of the present invention when installed on the wind vane;

[0030] Figure 5 A schematic diagram of the structural decomposition of a transmitting end tooling of a wind turbine wind vane zero position calibration device provided by an embodiment of the present invention;

[0031] Figure 6 A schematic structural diagram of a receiving end tooling of a wind turbine wind vane zero position calibration device provided by an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the installation of a receiving end tooling of a wind turbine wind vane zero position calibration device provided by an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 100-transmitter tooling; 200-laser transmitter; 300-receiver tooling; 400-wind vane; 500-cabin; 600-axis hole; 700-mounting base;

[0035] 110- scale line; 120- clamp; 130- rotating seat;

[0036] 121-fixed half ring; 122-movable half ring; 123-locking assembly; 124-positioning groove; 125-locking rod; 126-butterfly nut;

[0037] 131-fixed part; 132-rotating part; 133-locking part; 134-first supporting arm; 135-base; 136-second supporting arm; 137-mounting hole; 138-positioning block; 139-fixing bolt;

[0038] 310-target rod; 320-adjusting rod; 330-fixing rod; 340-optical axis cross connector; 350-scale value. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] Figure 1 The front view of the installation of the wind vane zero position calibration device of the wind turbine generator set provided in this embodiment on the nacelle 500, Figure 2 for Figure 1 A magnified view of the local structure at point A. Figure 1 and Figure 2 As shown, this embodiment provides a wind vane zero position calibration device for a wind turbine generator set, including a transmitting end tooling 100, a laser transmitter 200 and a receiving end tooling 300. Specifically, the transmitting end tooling 100 is fixed to the wind vane 400, and the transmitting end tooling 100 is provided with a scale line 110 corresponding to the marking N line of the wind vane 400. The laser transmitter 200 is installed on the transmitting end tooling 100, and the pitch angle of the laser transmitter 200 is adjustable; the receiving end tooling 300 is installed on the front side of the cabin 500 of the wind turbine generator set, wherein the receiving end tooling 300 includes a target rod 310, and the position of the target rod 310 is adjustable along the radial direction of the cabin 500, and the target rod 310 is used to receive the laser emitted by the laser transmitter 200.

[0041] Figure 3 This is a top view of the installation of the wind vane zero position calibration device of the wind turbine generator set provided in this embodiment on the nacelle 500. Please continue to refer to Figure 1 and Figure 2 When the wind vane 400 of the wind turbine generator set needs to be zero-calibrated, the transmitting end tooling 100 can be fixed on the wind vane 400. When fixed, the scale line 110 set on the transmitting end tooling 100 is aligned with the marking N line of the wind vane 400; the laser transmitter 200 is installed on the transmitting end tooling 100; Figure 3As shown, the receiving end tooling 300 is installed on the front side of the nacelle 500 of the wind turbine generator set, and the radial position of the target rod 310 along the nacelle 500 is adjusted so that the distance of the target rod 310 deviating from the axis of the nacelle 500 is consistent with the distance of the mounting base 700 of the wind vane 400 deviating from the axis of the nacelle 500, so that the connection line between the target rod 310 and the laser transmitter 200 is parallel to the axis of the nacelle 500; then, by loosening the bolts of the mounting base 700 of the wind vane 400, the fixing of the mounting base 700 is released to adjust the steering of the wind vane 400, and at the same time, the pitch angle of the laser transmitter 200 is adjusted until the laser emitted by the laser transmitter 200 is projected onto the target rod 310 of the receiving end tooling 300, and then, the mounting base 700 of the wind vane 400 is fixed, so that the zero position calibration of the wind vane 400 can be realized. The distance that the target rod 310 deviates from the axis of the cabin 500 and the distance that the mounting base 700 of the weather vane 400 deviates from the axis of the cabin 500 are both B.

[0042] The wind turbine wind vane zero position calibration device effectively solves the problem of inaccurate on-site zero position calibration of the wind turbine wind vane, improves the calibration accuracy, and is easy to operate, and can realize rapid calibration of the wind vane 400 zero position.

[0043] In this embodiment, when the scale line 110 set on the transmitting end tooling 100 is opposite to the marking N line of the wind vane 400, the wind direction line indicated by the wind vane 400 is coplanar with the plane swept by the laser emitter 200 when pitching, so that when the transmitting end tooling 100 is opposite to the marking N line of the wind vane 400 through the scale line 110, the direction in which the laser emitter 200 emits the laser can directly reflect the wind direction line of the wind vane 400, so as to realize the zero position calibration of the wind vane 400 by using the light emitted by the laser emitter 200.

[0044] It should be noted that the above-mentioned "distance that the target rod 310 deviates from the axis of the nacelle 500" is the distance that the center line of the target rod 310 deviates from the axis of the nacelle 500, and the above-mentioned "distance that the mounting base 700 of the weather vane 400 deviates from the axis of the nacelle 500" is the distance that the center line of the mounting base 700 of the weather vane 400 deviates from the axis of the nacelle 500, wherein the "axis of the nacelle 500" is the center line of the nacelle 500.

[0045] Figure 4 The schematic diagram of the structure of the transmitting end tooling 100 and the laser transmitter 200 of the wind vane zero position calibration device for a wind turbine generator set provided in this embodiment when they are installed on the wind vane 400 is shown in FIG. Figure 5 The schematic diagram of the structure decomposition of the transmitting end tooling 100 of the wind vane zero position calibration device for a wind turbine generator set provided in this embodiment. Figure 4 and Figure 5As shown, the transmitting end tooling 100 may include a clamp 120 and a rotating seat 130 arranged on the clamp 120. Specifically, the transmitting end tooling 100 is fixed to the weather vane 400 through the clamp 120. The rotating seat 130 includes a fixing portion 131 for being fixedly connected to the clamp 120, a rotating portion 132 rotatably arranged on the fixing portion 131, and a locking portion 133 for fixing the relative position of the rotating portion 132 and the fixing portion 131, wherein the laser emitter 200 is installed on the rotating portion 132, and the rotating portion 132 is used to adjust the pitch angle of the laser emitter 200.

[0046] When the zero position of the wind vane 400 is calibrated using the wind turbine generator set wind vane zero position calibration device, the clamp 120 can be fixed to the wind vane 400, the fixed part 131 of the rotating seat 130 can be fixed to the clamp 120, and the laser emitter 200 can be fixed to the rotating part 132, so as to achieve the installation of the laser emitter 200 on the wind vane 400; during the calibration process, the locking part 133 on the rotating part 132 can be released first, so that the rotating part 132 rotates relative to the fixed part 131. During this process, the laser emitter 200 rotates synchronously, so as to achieve the adjustment of the pitch angle of the laser emitter 200; when the laser emitter 200 is adjusted to an angle that can be projected on the target rod 310, the locking part 133 can be used to fix the rotating part 132 to the fixed part 131, so that the laser emitter 200 can be fixed at the current position.

[0047] This arrangement of the transmitting end tooling 100 can not only realize reliable fixation on the wind vane 400 , but also facilitate adjustment of the pitch angle of the laser transmitter 200 , thereby improving the zero position calibration efficiency of the wind vane 400 .

[0048] Specifically, in this embodiment, the locking portion 133 may include a first bolt and a second bolt, wherein the first support arm 134 and the second support arm 136 are respectively provided with a first locking hole and a second locking hole at relative positions, and the rotating portion 132 is provided with a first fixing hole opposite to the first locking hole and a second fixing hole opposite to the second locking hole, the first locking hole and the second locking hole are both smooth holes, and the first fixing hole and the second fixing hole are both threaded holes, the first bolt can pass through the first locking hole and be screwed and fixed to the first fixing hole, and the second bolt can pass through the second locking hole and be screwed and fixed to the second fixing hole.

[0049] When the pitch angle of the laser emitter 200 needs to be adjusted, the first bolt and the second bolt can be loosened first to release the locking effect of the first bolt and the second bolt on the rotating part 132; then, the rotating part 132 is rotated with the axis of the first fixing hole and the second fixing hole as the rotation axis to adjust the pitch angle of the laser emitter 200; after the pitch angle of the laser emitter 200 is adjusted, the first bolt and the second bolt are tightened, the first support arm 134 is pressed by the first bolt, and the second support arm 136 is pressed by the second bolt, so as to fix the rotating part 132 at the current position and achieve the purpose of adjusting the pitch angle of the laser emitter 200.

[0050] Please continue to refer to Figure 4 and Figure 5 In this embodiment, the clamp 120 includes a fixed half ring 121, a movable half ring 122 and a locking assembly 123. Specifically, the first end of the movable half ring 122 is rotatably connected to the first end of the fixed half ring 121, and the second end of the movable half ring 122 is detachably arranged from the second end of the fixed half ring 121. The locking assembly 123 is used to fix the second end of the movable half ring 122 to the second end of the fixed half ring 121.

[0051] When the clamp 120 needs to be fixed to the weather vane 400, the locking assembly 123 on the movable half ring 122 can be released first, and the first end of the movable half ring 122 can be rotated relative to the first end of the fixed half ring 121, so that the second end of the movable half ring 122 is separated from the second end of the fixed half ring 121; then, the weather vane 400 is placed in the accommodating space between the fixed half ring 121 and the movable half ring 122, and the locking assembly 123 is used to lock the second end of the movable half ring 122 to the second end of the fixed half ring 121, so that the clamp 120 is tightly clamped on the weather vane 400. When the clamp 120 needs to be removed from the weather vane 400, the locking assembly 123 on the movable half ring 122 can be released, so that the second end of the movable half ring 122 is separated from the second end of the fixed half ring 121, and the clamp 120 can be removed.

[0052] This arrangement of the clamp 120 allows it to be installed on the wind vane 400 and removed from the wind vane 400 from the side of the wind vane 400. There is no need to remove the wind vane 400 during the installation process, which is convenient to use.

[0053] Please continue to refer to Figure 5 In this embodiment, the locking assembly 123 may include a locking rod 125 and a butterfly nut 126. Specifically, one end of the locking rod 125 is rotatably connected to the second end of the fixed half ring 121, and the rotation axis of the locking rod 125 is parallel to the center line of the clamp 120. The locking rod 125 is provided with an external thread section, and the butterfly nut 126 is threadedly connected to the external thread section; the second end of the movable half ring 122 is provided with a locking groove.

[0054] When it is necessary to lock the second end of the movable half ring 122 to the second end of the fixed half ring 121, the butterfly nut 126 can be rotated together with the locking rod 125 in the direction away from the clamp 120 to avoid the movable half ring 122; then, the movable half ring 122 is rotated relative to the fixed half ring 121, so that the second end of the movable half ring 122 is opposite to the second end of the fixed half ring 121; thereafter, the butterfly nut 126 is rotated together with the locking rod 125 in the direction close to the clamp 120, so that the locking rod 125 is stuck in the locking groove of the movable half ring 122; finally, the butterfly nut 126 is tightened so that the butterfly nut 126 abuts against the movable half ring 122, thereby locking the movable half ring 122.

[0055] In this embodiment, the first end of the movable half ring 122 is rotatably connected to the first end of the fixed half ring 121 via a pin; the locking rod 125 is a movable bolt.

[0056] Please continue to refer to Figure 5 In this embodiment, both the fixed half ring 121 and the movable half ring 122 are provided with scale lines 110, and the inner surface of the fixed half ring 121 and the inner surface of the movable half ring 122 are matched with the outer surface of the part of the weather vane 400 where the transmitting end tooling 100 is to be fixed.

[0057] Please continue to refer to Figure 5 In this embodiment, the fixed part 131 may include a first support arm 134, a base 135 and a second support arm 136 which are connected in sequence in a U shape, wherein the fixed part 131 is fixedly connected to the fixed half ring 121 through the base 135, and the rotating part 132 is rotatably arranged between the first support arm 134 and the second support arm 136; the rotating part 132 is provided with a mounting hole 137, and the laser emitter 200 is fixedly arranged in the mounting hole 137.

[0058] This arrangement of the fixing portion 131 can not only realize reliable connection with the clamp 120 by utilizing the base 135 , but also realize reliable support of the rotating portion 132 by utilizing the first support arm 134 and the second support arm 136 , thereby ensuring the accuracy of adjusting the pitch angle of the laser transmitter 200 .

[0059] Please continue to refer to Figure 5 In this embodiment, the rotating portion 132 is provided with a fixing screw hole connected to the mounting hole 137, and the rotating seat 130 also includes a fixing bolt 139. Specifically, the fixing bolt 139 is screwed into the fixing screw hole and can abut against the outer surface of the laser emitter 200 located in the mounting hole 137.

[0060] When the laser emitter 200 needs to be installed on the rotating part 132, the fixing bolt 139 can be loosened first to insert the laser emitter 200 into the mounting hole 137; then, the fixing bolt 139 is tightened so that the free end of the fixing bolt 139 abuts against the outer surface of the laser emitter 200, thereby fixing the laser emitter 200 in the mounting hole 137. When the laser emitter 200 needs to be removed from the rotating part 132, the fixing bolt 139 can be loosened to release the lock on the laser emitter 200, and the laser emitter 200 can be removed.

[0061] This method of fixing the laser emitter 200 can achieve rapid assembly and disassembly of the laser emitter 200, thereby improving the assembly efficiency of the wind vane zero position calibration device of the wind turbine generator set of this embodiment.

[0062] Please continue to refer to Figure 5 In this embodiment, the fixed half ring 121 is provided with a positioning groove 124 , and the base 135 is provided with a positioning block 138 , wherein the positioning block 138 is plugged into and matched with the positioning groove 124 .

[0063] With such arrangement, the positioning block 138 and the positioning groove 124 can be used to fit the rotating seat 130 on the fixed half ring 121 , which not only improves the assembly efficiency but also ensures the assembly accuracy.

[0064] Specifically, when the wind vane zero position calibration device of the wind turbine generator set is in use, the positioning groove 124 is located on the upper surface of the fixed half ring 121 to limit the horizontal movement freedom of the rotating seat 130 .

[0065] Please continue to refer to Figure 5 In this embodiment, a connecting light hole is opened on the bottom wall of the positioning groove 124, and correspondingly, a connecting screw hole is opened at the corresponding position of the base 135. The connecting bolt passes through the connecting light hole from bottom to top and is screwed into the connecting screw hole, thereby fixing the rotating seat 130 on the fixed half ring 121.

[0066] Figure 6 The schematic diagram of the structure of the receiving end tooling 300 of the wind vane zero position calibration device for a wind turbine generator set provided in this embodiment is as follows: Figure 7 The following is a schematic diagram of the installation of the receiving end tooling 300 of the wind vane zero position calibration device for a wind turbine generator set provided in this embodiment. Figure 6 and Figure 7As shown, in this embodiment, the receiving end tooling 300 may also include an adjusting rod 320 and two fixing rods 330. Specifically, the target rod 310 and the two fixing rods 330 are all installed on the adjusting rod 320, and along the length direction of the adjusting rod 320, the positions of the target rod 310 and the two fixing rods 330 are adjustable, wherein the fixing rod 330 is at an angle to the target rod 310, and the two fixing rods 330 are used to be respectively inserted into the two axial holes 600 on the main shaft end face on the front side of the cabin 500.

[0067] In this embodiment, the fixing rod 330 and the target rod 310 are arranged at 90 degrees. When installing the receiving end tooling 300, it is only necessary to insert the two fixing rods 330 into the two shaft holes 600 on the end face of the main shaft respectively, so that the receiving end tooling 300 can be fixed on the front side of the cabin 500. At this time, the target rod 310 can be made to face upward to receive the laser projected by the laser transmitter 200. After completing the zero position calibration of the wind vane 400, the fixing rod 330 can be pulled out from the corresponding shaft hole 600 to realize the removal of the receiving end tooling 300.

[0068] This arrangement of the receiving end fixture 300 can achieve the fixing of the receiving end fixture 300 on the front side of the nacelle 500 by plugging and matching the fixing rod 330 with the shaft hole 600 on the end face of the main shaft, without the need to set up additional mounting structures on the nacelle 500 and other unit components, which will not change the structure of the nacelle 500 and other unit components, thereby affecting the normal operation of the wind turbine generator set, and is almost zero-cost to install. In addition, this method of fixing the receiving end fixture 300 can also achieve rapid assembly and disassembly of the receiving end fixture 300, thereby improving the efficiency of zero-position calibration of the wind vane 400.

[0069] Please continue to refer to Figure 6 In this embodiment, the target rod 310 and the two fixing rods 330 are connected to the adjustment rod 320 through an optical axis cross connector 340 .

[0070] Such a configuration not only facilitates the position adjustment of the target rod 310 and the two fixed rods 330, but also makes it possible to keep the distance of the target rod 310 deviating from the axis of the cabin 500 consistent with the distance of the mounting base 700 of the weather vane 400 deviating from the axis of the cabin 500, and makes the positions of the two fixed rods 330 correspond to the positions of the shaft holes 600 to be plugged in, so as to realize the respective plugging of the two fixed rods 330 in the two shaft holes 600, and the target rod 310 and the two fixed rods 330 can be removed from the adjusting rod 320 to facilitate the carrying of the receiving end tooling 300.

[0071] In other embodiments, the fixing rods 330 may also be in other quantities, such as three, which can also achieve the fixation of the receiving end tooling 300 on the cabin 500. At this time, the three fixing rods 330 are respectively plugged into and matched with the three axial holes 600 one by one.

[0072] Please continue to refer to Figure 6 In this embodiment, the adjusting rod 320 is provided with scale values ​​350 arranged along its length direction. Such a configuration facilitates accurate positioning of the optical axis cross connector 340 on the surface of the adjusting rod 320, thereby achieving the purpose of quickly adjusting the positions of the target rod 310 and the fixing rod 330.

[0073] Specifically, in this embodiment, the target rod 310 can be a telescopic rod. When in use, the length of the target rod 310 can be lengthened so that the laser emitted by the laser transmitter 200 can be projected to the target rod 310; when not in use, the length of the target rod 310 can be shortened to facilitate carrying of the receiving end tooling 300.

[0074] It should be noted that when the target rod 310 is a telescopic rod, the structure of the target rod 310 can be a structure similar to a radio antenna. This arrangement allows the target rod 310 to stably maintain its current length when it is extended to a desired length.

[0075] In other embodiments, the target rod 310 may be configured to be formed by a plurality of sub-rods arranged along its length direction and connected detachably to each other, specifically, the plurality of sub-rods may be threadedly connected to each other. When in use, two adjacent sub-rods of the target rod 310 may be threadedly connected together to lengthen the target rod 310 to receive the laser emitted by the laser emitter 200; when not in use, the threaded connection between the sub-rods may be released to separate the plurality of sub-rods from each other to improve portability.

[0076] It should be noted that when the target rod 310 is formed by a plurality of sub-rods connected by threads, an internal thread may be provided at one end of the sub-rod and an external thread may be provided at the other end of the sub-rod, and the connection between two adjacent sub-rods may be achieved by the cooperation of the external thread and the internal thread.

[0077] In addition, the present embodiment also provides a method for calibrating the zero position of a wind vane of a wind turbine generator set, and the zero position of a wind vane 400 is calibrated using the above-mentioned wind vane zero position calibration device of the wind turbine generator set, comprising the following steps: installing the laser transmitter 200 on the transmitting end tooling 100, and fixing the transmitting end tooling 100 on the wind vane 400, so that the scale line 110 set on the transmitting end tooling 100 is aligned with the marking N line of the wind vane 400; installing the receiving end tooling 300 on the front side of the cabin 500 of the wind turbine generator set, and adjusting the target rod 310 along the radial direction of the cabin 500. Position, so that the distance of the target rod 310 deviating from the axis of the cabin 500 is consistent with the distance of the mounting base 700 of the wind vane 400 deviating from the axis of the cabin 500; by loosening the bolts of the mounting base 700 of the wind vane 400, the fixing of the mounting base 700 is released to adjust the direction of the wind vane 400, and adjust the pitch angle of the laser transmitter 200 until the laser emitted by the laser transmitter 200 is projected onto the target rod 310 of the receiving end tooling 300; fix the mounting base 700 of the wind vane 400 to complete the zero position calibration of the wind vane 400. In the process of adjusting the direction of the wind vane 400, since the laser transmitter 200 is fixed to the wind vane 400, the laser transmitter 200 will rotate synchronously with the wind vane 400.

[0078] The wind turbine wind vane zero position calibration method utilizes the above-mentioned wind turbine wind vane zero position calibration device to calibrate the zero position of the wind vane 400. Accordingly, the wind turbine wind vane zero position calibration method has all the advantages of the above-mentioned wind turbine wind vane zero position calibration device, which will not be described in detail here.

[0079] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

[0080] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0081] In the above embodiments, the descriptions of directions such as “upper”, “lower”, “side”, etc. are all based on the drawings.

[0082] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wind vane zero position calibration device for a wind turbine generator set, characterized in that: The invention comprises a transmitting end tooling (100), a laser transmitter (200) and a receiving end tooling (300), wherein the transmitting end tooling (100) is used for being fixedly connected to a weather vane (400), the transmitting end tooling (100) is provided with a scale line (110) which is opposite to the marking N line of the weather vane (400), the laser transmitter (200) is installed on the transmitting end tooling (100), and the pitch angle of the laser transmitter (200) is adjustable; the receiving end tooling (300) is used for being installed on the front side of a cabin (500) of a wind turbine generator set, the receiving end tooling (300) comprises a target rod (310), the position of the target rod (310) is adjustable along the radial direction of the cabin (500), and the target rod (310) is used for receiving the laser emitted by the laser transmitter (200); The receiving end tooling (300) further comprises an adjusting rod (320) and a plurality of fixing rods (330); the target rod (310) and the plurality of fixing rods (330) are both mounted on the adjusting rod (320), and along the length direction of the adjusting rod (320), the positions of the target rod (310) and the plurality of fixing rods (330) are adjustable; the fixing rod (330) and the target rod (310) are at an angle, and the plurality of fixing rods (330) are used to be respectively inserted into a plurality of shaft holes (600) on the main shaft end surface at the front side of the cabin (500); The adjusting rod (320) is provided with scale values ​​(350) arranged along its length direction; The target rod (310) is a telescopic rod; or the target rod (310) comprises a plurality of sub-rods arranged along its length direction, and the plurality of sub-rods are detachably connected to each other.

2. The wind vane zero position calibration device for a wind turbine generator set according to claim 1, characterized in that: The transmitting end tooling (100) comprises a clamp (120) and a rotating seat (130) arranged on the clamp (120); the transmitting end tooling (100) is fixed to the weather vane (400) via the clamp (120); the rotating seat (130) comprises a fixing portion (131) for being fixedly connected to the clamp (120), a rotating portion (132) rotatably arranged on the fixing portion (131), and a locking portion (133) for fixing the relative position of the rotating portion (132) and the fixing portion (131); the laser transmitter (200) is mounted on the rotating portion (132); and the rotating portion (132) is used to adjust the pitch angle of the laser transmitter (200).

3. The wind vane zero position calibration device for a wind turbine generator set according to claim 2, characterized in that: The clamp (120) comprises a fixed half ring (121), a movable half ring (122) and a locking assembly (123); the first end of the movable half ring (122) is rotatably connected to the first end of the fixed half ring (121); the second end of the movable half ring (122) is detachably arranged from the second end of the fixed half ring (121); and the locking assembly (123) is used to fix the second end of the movable half ring (122) to the second end of the fixed half ring (121).

4. The wind vane zero position calibration device for a wind turbine generator set according to claim 3, characterized in that: The fixed portion (131) comprises a first support arm (134), a base (135) and a second support arm (136) which are connected in sequence in a U shape; the fixed portion (131) is fixedly connected to the fixed half ring (121) via the base (135); the rotating portion (132) is rotatably arranged between the first support arm (134) and the second support arm (136); the rotating portion (132) is provided with a mounting hole (137), and the laser emitter (200) is fixedly arranged in the mounting hole (137).

5. The wind vane zero position calibration device for a wind turbine generator set according to claim 4, characterized in that: The fixed half ring (121) is provided with a positioning groove (124), and the base (135) is provided with a positioning block (138), and the positioning block (138) is plugged into and matched with the positioning groove (124).

6. The wind vane zero position calibration device for a wind turbine generator set according to claim 4, characterized in that: The rotating portion (132) is provided with a fixing screw hole connected to the mounting hole (137), and the rotating seat (130) further includes a fixing bolt (139), which is screwed to the fixing screw hole and can abut against the outer surface of the laser emitter (200) located in the mounting hole (137).

7. A method for zero-position calibration of a wind vane of a wind turbine generator set, characterized in that: Using the wind turbine wind vane zero position calibration device according to any one of claims 1 to 6 to calibrate the zero position of the wind vane (400) comprises the following steps: The laser transmitter (200) is mounted on the transmitting end tooling (100), and the transmitting end tooling (100) is fixedly mounted on the weather vane (400), so that the scale line (110) provided on the transmitting end tooling (100) is aligned with the marking N line of the weather vane (400); The receiving end tooling (300) is installed on the front side of the nacelle (500) of the wind turbine generator set, and the radial position of the target rod (310) along the nacelle (500) is adjusted so that the distance of the target rod (310) deviating from the axis of the nacelle (500) is consistent with the distance of the mounting base (700) of the wind vane (400) deviating from the axis of the nacelle (500); The fixing of the mounting base (700) is released by loosening the bolts of the mounting base (700) of the weather vane (400), so as to adjust the direction of the weather vane (400) and adjust the pitch angle of the laser transmitter (200) until the laser emitted by the laser transmitter (200) is projected onto the target rod (310) of the receiving end tooling (300); The mounting base (700) of the wind vane (400) is fixed to complete the zero position calibration of the wind vane (400).

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