Wind alignment angle deviation calibration device of wind generating set

Abstract

The utility model discloses a wind alignment angle deviation calibration device for a wind generating set, which relates to the technical field of wind power generation and comprises a hollow support column and a wind indicator fixedly mounted at the top end of the support column, and further comprises an adjusting unit, a limiting unit and a calibration component which are arranged on the support column, the adjusting unit comprises a vertical screw rod, a tray, a limiting strip and a bearing circular ring; the limiting unit comprises a bearing frame, a bidirectional lead screw, a guide block, a limiting arc plate and an inserting block. According to the utility model, the vertical screw rod is controlled to rotate forwards and backwards on the supporting column, and after the limiting strip positioned on the strip-shaped limiting groove limits the angle of the tray, the tray in threaded connection with the vertical screw rod can be lifted and adjusted in the supporting column under the stress effect; the bearing circular ring fixed to the limiting strip and located outside the supporting column can drive the limiting unit to ascend and descend to change the height position of the calibration assembly for disassembly and assembly, and the equipment is flexible and safer in the disassembly and assembly operation position of the calibration assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to an angle deviation calibration device for the wind-facing angle of a wind turbine generator set. Background Technique

[0002] In the prior art, the common method for calibrating the wind-facing angle is to install a long connecting rod and a laser probe to assist in calibration. However, since the nacelle of the wind turbine generator and the wind vane are not in the same plane, calibrating the offset angle of the wind vane takes a long time, resulting in low calibration efficiency and an increase in the dangerous operation time of the operator. For example, a wind turbine generator wind vane zero position calibration device disclosed in the publication number CN217034005U solves the problem of inaccurate on-site zero position calibration of the wind vane through a laser emitter and a target rod. However, this device cannot accurately and quickly calibrate the wind-facing angle.

[0003] The publication (announcement) number CN220302258U discloses a wind turbine generator wind-facing angle deviation calibration device, including: a wind vane, a bracket, an angle scale, and a direction finder; the wind vane includes: a wind vane main body and a wind vane base; a magnetic pole is provided at the tip of the wind vane main body, and the wind vane base is fixedly connected to the top surface of the nacelle of the wind turbine generator through a wind vane fixing rod; the bracket includes: a connecting rod and a guiding rod; the connecting rod is horizontally arranged, one end is rotatably connected to the wind vane base, and the other end is fixedly connected to the lower end of the guiding rod and is perpendicular to the guiding rod; a magnetic pole sensor is provided at the upper end of the guiding rod, and the magnetic pole sensor and the magnetic pole are in the same plane and are used to light an indicator lamp when detecting that the magnetic field direction of the magnetic pole is the positive S pole or the positive N pole. This calibration device can assist the user to quickly calibrate the angle deviation of the nacelle of the wind turbine generator.

[0004] Although the above solution can quickly calibrate the angle deviation of the nacelle of the wind turbine generator, when assembling the calibration components at a high position on the wind vane base, personnel need to climb to a high place for operation. The disassembly and assembly operations of the equipment for the calibration components are troublesome and unsafe, and the calibration components are fixed on the rod body through buckle parts, which requires multiple operations and is also easy to loosen. The disassembly and assembly of the equipment for the calibration components are laborious and the stability is poor. Therefore, we propose a wind turbine generator wind-facing angle deviation calibration device. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a wind turbine generator wind-facing angle deviation calibration device, which solves the problems that the disassembly and assembly operations of the equipment for the calibration components are troublesome and unsafe, and the disassembly and assembly of the equipment for the calibration components are laborious and the stability is poor by setting an adjustment unit and a limit unit.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions: A wind turbine wind angle deviation calibration device, which includes a support column with a hollow interior and a wind vane fixedly installed at the top of the support column, and further includes: an adjustment unit, a limit unit, and a calibration component provided on the support column;

[0007] The adjustment unit includes a vertical lead screw, a tray, a limit strip, and a bearing ring. The vertical lead screw is movably arranged inside the support column. The tray is threadedly connected to the vertical lead screw. A strip-shaped limit groove is provided on the outer peripheral surface of the vertical lead screw. The limit strip is fixedly arranged on the outer peripheral surface of the tray and is located on the strip-shaped limit groove. The inner wall of the bearing ring is fixedly connected to the end surface of the limit strip and is located outside the support column. One end of the vertical lead screw that extends out of the support column movably is fixedly provided with a first turntable;

[0008] The limit unit includes a carrier, a bidirectional lead screw, guide blocks, limit arc plates, and insertion blocks. The carrier is located outside the bearing ring and is in a "U" shape, and the interior of the carrier is hollow. The bidirectional lead screw is movably arranged on the inner wall of one end of the carrier. There are four guide blocks in total and they are equally divided into two groups. One group of guide blocks respectively cooperate with the symmetrically arranged positive and negative threads on the bidirectional lead screw. A limit arc plate is fixedly arranged between every two guide blocks located on the same longitudinal central horizontal plane. An insertion groove is provided on the outer peripheral surface of the bearing ring. One end of the insertion block is fixedly arranged at the center of the concave surface of the limit arc plate, and the other end of the insertion block movably extends into the insertion groove. One end of the bidirectional lead screw that extends out of the carrier is fixedly provided with a second turntable.

[0009] Preferably, there are two limit strips in total and they are symmetrically arranged on the outer peripheral surface of the tray. The strip-shaped limit groove and the limit strip are arranged in one-to-one correspondence.

[0010] Preferably, the limit unit further includes a guide rod, and the guide rod is fixedly arranged on the inner wall of the other end of the carrier and movably penetrates through the two guide blocks.

[0011] Preferably, the calibration component includes a semi-circular guide rail, an arc-shaped slider, a support arm, a direction finder, a magnetic pole sensor, and a level. The semi-circular guide rail is fixedly arranged on the top surface of the carrier. The arc-shaped slider is movably arranged on the semi-circular guide rail. The support arm is in an "L" shape and one end of it is fixedly connected to the center of the convex surface of the arc-shaped slider. The direction finder is fixedly installed on the concave surface at the bottom of the support arm. The magnetic pole sensor is fixedly arranged at the other end of the support arm. The level is installed on the top surface of the carrier. Scale grooves are provided on the top surface of the semi-circular guide rail and are distributed in an equidistant circular array.

[0012] Preferably, the calibration component further includes a positioning magnetic pole, and the positioning magnetic pole is fixedly installed on the wind vane. The positioning magnetic pole and the magnetic pole sensor are located on the same horizontal plane.

[0013] Preferably, an installation base is fixedly connected to the outer peripheral surface of the bottom end of the support column through a bracket.

[0014] Compared with the prior art, the wind turbine yaw angle deviation calibration device of the present invention has the following beneficial effects:

[0015] 1. In the present invention, by setting the adjustment unit, before the bearing ring is used as a carrier to cooperate with the limiting unit to fix the calibration component, by holding the first turntable, the vertical screw rod can be rotated forward and backward on the support column. After the limiting strip on the strip-shaped limiting groove restricts the angle of the tray, the tray threaded with the vertical screw rod can move up and down in the support column under the action of force, and the bearing ring fixed on the limiting strip and located outside the support column can drive the limiting unit to move up and down to change the height position for disassembling and assembling the calibration component. The equipment is flexible and safer in the disassembly and assembly operation position of the calibration component.

[0016] 2. In the present invention, by setting the limiting unit, the two limiting arc plates inside the bearing frame can be placed on the outside of the bearing ring. By holding the second turntable, the bidirectional screw rod can be rotated forward and backward on the bearing frame. The relative movement of two of the guide blocks threaded with the bidirectional screw rod under the action of force can drive the two limiting arc plates to adjust the distance. The other two guide blocks can slide and translate on the guide rod to cooperate with the movement of the limiting arc plates and provide auxiliary support for them. While the two limiting arc plates are pressed against the outer peripheral surface of the bearing ring, the insertion block fixedly arranged at the center of the concave surface of the limiting arc plate can be inserted into the insertion groove on the outer peripheral surface of the bearing ring, and the bearing frame is fully limited on the bearing ring. The equipment is labor-saving and has high stability in the disassembly and assembly of the calibration component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of a wind turbine yaw angle deviation calibration device of the present invention;

[0019] Figure 2 It is a schematic top view structure diagram of a wind turbine yaw angle deviation calibration device of the present invention;

[0020] Figure 3 For the present invention Figure 2 is a schematic cross-sectional structure diagram at A-A in;

[0021] Figure 4 For the present inventionFigure 3 Schematic cross-sectional structure diagram at B-B;

[0022] Figure 5 This is the front view structure diagram of an angle deviation calibration device for wind turbines of the present utility model.

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Support column;

[0025] 2. Adjustment unit; 201. Vertical lead screw; 202. Tray; 203. Limit strip; 204. Bearing ring;

[0026] 3. Limiting unit; 301. Bearing frame; 302. Bidirectional lead screw; 303. Guide block; 304. Limiting arc plate; 305. Insertion block; 306. Guide rod;

[0027] 4. Wind vane;

[0028] 5. Calibration component; 501. Semi-circular guide rail; 502. Arc-shaped slider; 503. Support arm; 504. Direction meter; 505. Magnetic pole sensor; 506. Level gauge; 507. Positioning magnetic pole;

[0029] 6. Installation base. Detailed implementation manners

[0030] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Embodiment

[0033] As Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, a wind turbine yaw angle deviation calibration device includes a support column 1 with a hollow interior and a wind vane 4 fixedly installed at the top of the support column 1, and further includes: an adjustment unit 2, a limit unit 3, and a calibration component 5 provided on the support column 1;

[0034] The adjustment unit 2 includes a vertical lead screw 201, a tray 202, a limit strip 203, and a bearing ring 204. The vertical lead screw 201 is movably arranged inside the support column 1. The tray 202 is threadedly connected to the vertical lead screw 201. A strip-shaped limit groove is formed on the outer peripheral surface of the vertical lead screw 201. The limit strip 203 is fixedly arranged on the outer peripheral surface of the tray 202 and is located on the strip-shaped limit groove. The inner wall of the bearing ring 204 is fixedly connected to the end surface of the limit strip 203 and is located outside the support column 1;

[0035] The limit unit 3 includes a bearing frame 301, a bidirectional lead screw 302, guide blocks 303, limit arc plates 304, and insertion blocks 305. The bearing frame 301 is located outside the bearing ring 204 and is in a "U" shape, and the interior of the bearing frame 301 is hollow. The bidirectional lead screw 302 is movably arranged on the inner wall of one end of the bearing frame 301. There are four guide blocks 303 in total and they are equally divided into two groups. One group of guide blocks 303 respectively cooperate with the symmetrically arranged positive and negative threaded sections on the bidirectional lead screw 302. A limit arc plate 304 is fixedly arranged between every two guide blocks 303 located on the same longitudinal central horizontal plane. An insertion groove is formed on the outer peripheral surface of the bearing ring 204. One end of the insertion block 305 is fixedly arranged at the center of the concave surface of the limit arc plate 304, and the other end of the insertion block 305 movably extends into the insertion groove.

[0036] Further, there are two limit strips 203 in total and they are symmetrically arranged on the outer peripheral surface of the tray 202. The strip-shaped limit grooves and the limit strips 203 are arranged in one-to-one correspondence.

[0037] Further, the calibration assembly 5 includes a semi-circular guide rail 501, an arc-shaped slider 502, a support arm 503, a direction finder 504, a magnetic pole sensor 505, and a spirit level 506. The semi-circular guide rail 501 is fixedly arranged on the top surface of the carrier 301. The arc-shaped slider 502 is movably arranged on the semi-circular guide rail 501. The support arm 503 is in an "L" shape, and one end thereof is fixedly connected to the center of the convex surface of the arc-shaped slider 502. The direction finder 504 is installed on the concave surface at the bottom of the support arm 503. The magnetic pole sensor 505 is fixedly arranged at the other end of the support arm 503. The spirit level 506 is fixedly installed on the top surface of the carrier 301.

[0038] Further, the calibration assembly 5 further includes a positioning magnetic pole 507. The positioning magnetic pole 507 is fixedly installed on the wind vane 4. The positioning magnetic pole 507 and the magnetic pole sensor 505 are located on the same horizontal plane.

[0039] Further, an installation base 6 is fixedly connected to the outer peripheral surface at the bottom end of the support column 1 through a bracket.

[0040] The adjustment unit 2 enables the equipment to have a flexible and safer disassembly and assembly operation position for the calibration assembly 5. Embodiment

[0041] As Figure 1 、 Figure 2 、 Figure 4 And Figure 5 shown, an angle deviation calibration device for a wind turbine to align with the wind direction includes a support column 1 with a hollow interior and a wind vane 4 fixedly installed at the top end of the support column 1. It further includes: an adjustment unit 2, a limit unit 3, and a calibration assembly 5 arranged on the support column 1;

[0042] The adjustment unit 2 includes a vertical lead screw 201, a tray 202, a limit strip 203, and a load-bearing ring 204. The vertical lead screw 201 is movably arranged inside the support column 1. The tray 202 is threadedly connected to the vertical lead screw 201. A strip-shaped limit groove is formed on the outer peripheral surface of the vertical lead screw 201. The limit strip 203 is fixedly arranged on the outer peripheral surface of the tray 202 and is located on the strip-shaped limit groove. The inner wall of the load-bearing ring 204 is fixedly connected to the end surface of the limit strip 203 and is located outside the support column 1;

[0043] The limiting unit 3 includes a carrier 301, a bidirectional lead screw 302, guide blocks 303, limiting arc plates 304, and insertion blocks 305. The carrier 301 is located outside the bearing ring 204 and is in a "U" shape, and the inside of the carrier 301 is hollow. The bidirectional lead screw 302 is movably arranged on the inner wall of one end of the carrier 301. There are four guide blocks 303 in total, which are equally divided into two groups. One group of guide blocks 303 respectively cooperate with the symmetrically arranged positive and negative threaded sections on the bidirectional lead screw 302. A limiting arc plate 304 is fixedly arranged between every two guide blocks 303 located on the same longitudinal central horizontal plane. An insertion groove is formed on the outer peripheral surface of the bearing ring 204. One end of the insertion block 305 is fixedly arranged at the center of the concave surface of the limiting arc plate 304, and the other end of the insertion block 305 extends into the insertion groove movably.

[0044] Furthermore, the limiting unit 3 further includes a guide rod 306. The guide rod 306 is fixedly arranged on the inner wall of the other end of the carrier 301 and movably penetrates through the two guide blocks 303.

[0045] Furthermore, the calibration assembly 5 includes a semi-circular guide rail 501, an arc-shaped slider 502, a support arm 503, a direction finder 504, a magnetic pole sensor 505, and a level 506. The semi-circular guide rail 501 is fixedly arranged on the top surface of the carrier 301. The arc-shaped slider 502 is movably arranged on the semi-circular guide rail 501. The support arm 503 is in an "L" shape, and one end of it is fixedly connected to the center of the convex surface of the arc-shaped slider 502. The direction finder 504 is fixedly installed on the concave surface at the bottom of the support arm 503. The magnetic pole sensor 505 is fixedly arranged at the other end of the support arm 503. The level 506 is installed on the top surface of the carrier 301.

[0046] Furthermore, the calibration assembly 5 further includes a positioning magnetic pole 507. The positioning magnetic pole 507 is fixedly installed on the wind vane 4, and the positioning magnetic pole 507 and the magnetic pole sensor 505 are located on the same horizontal plane.

[0047] Furthermore, an installation base 6 is fixedly connected to the outer peripheral surface of the bottom end of the support column 1 through a bracket.

[0048] The limiting unit 3 makes the disassembly and assembly of the calibration assembly 5 labor-saving and highly stable for the equipment.

[0049] The working principle of the present utility model is as follows:

[0050] Hold the first turntable to control the vertical lead screw 201 to rotate forward and backward on the support column 1. After the limiting strip 203 on the strip-shaped limiting groove limits the angle of the tray 202, the tray 202 threadedly connected to the vertical lead screw 201 is forced to lift and adjust inside the support column 1. The bearing ring 204 fixed to the limiting strip 203 and located outside the support column 1 drives the limiting unit 3 to lift accordingly, changing the height position for disassembling and assembling the calibration assembly 5. The two limiting arc plates 304 on the inner side of the bearing frame 301 are placed outside the bearing ring 204. By holding the second turntable to control the bidirectional lead screw 302 to rotate forward and backward on the bearing frame 301, two of the guide blocks 303 threadedly connected to the bidirectional lead screw 302 are forced to move relatively, driving the two limiting arc plates 304 to adjust the distance. The other two guide blocks 303 slide and translate on the guide rod 306 to cooperate with the movement of the limiting arc plates 304 and provide auxiliary support for them. While the two limiting arc plates 304 are pressing against the outer peripheral surface of the bearing ring 204, the insertion block 305 fixedly arranged at the center of the concave surface of the limiting arc plate 304 is inserted into the insertion groove on the outer peripheral surface of the bearing ring 204, and the bearing frame 301 is fully limited on the bearing ring 204.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine generator set wind angle deviation calibration device, comprising a support column (1) with a hollow interior and a wind vane (4) fixedly mounted on the top of the support column (1), characterized in that: It further includes: An adjustment unit (2), a limit unit (3), and a calibration component (5) provided on a support column (1); The adjustment unit (2) includes a vertical lead screw (201), a tray (202), a limit strip (203), and a bearing ring (204). The vertical lead screw (201) is movably arranged inside the support column (1). The tray (202) is threadedly connected to the vertical lead screw (201). A strip-shaped limit groove is formed on the outer peripheral surface of the vertical lead screw (201). The limit strip (203) is fixedly arranged on the outer peripheral surface of the tray (202) and is located on the strip-shaped limit groove. The inner wall of the bearing ring (204) is fixedly connected to the end surface of the limit strip (203) and is located outside the support column (1); The limit unit (3) includes a carrier (301), a bidirectional lead screw (302), guide blocks (303), limit arc plates (304), and insertion blocks (305). The carrier (301) is located outside the bearing ring (204) and is in a "U" shape, and the inside of the carrier (301) is hollow. The bidirectional lead screw (302) is movably arranged on the inner wall of one end of the carrier (301). There are four guide blocks (303) in total and they are equally divided into two groups. One group of guide blocks (303) respectively cooperate with the symmetrically arranged positive and negative threaded sections on the bidirectional lead screw (302). A limit arc plate (304) is fixedly arranged between every two guide blocks (303) located on the same longitudinal central horizontal plane. An insertion groove is formed on the outer peripheral surface of the bearing ring (204). One end of the insertion block (305) is fixedly arranged at the concave center of the limit arc plate (304), and the other end of the insertion block (305) movably extends into the insertion groove; 2. A wind turbine generator set wind angle deviation calibration device according to claim 1, characterized in that: There are two limit strips (203) in total and they are symmetrically arranged on the outer peripheral surface of the tray (202). The strip-shaped limit groove corresponds to the limit strip (203) one by one; 3. A wind turbine generator set wind angle deviation calibration device according to claim 1, characterized in that: The limit unit (3) further includes a guide rod (306). The guide rod (306) is fixedly arranged on the inner wall of the other end of the carrier (301) and movably penetrates through the two guide blocks (303); 4. A wind turbine generator set wind angle deviation calibration device according to claim 1, characterized in that: The calibration component (5) includes a semi-circular guide rail (501), an arc-shaped slider (502), a support arm (503), a direction finder (504), a magnetic pole sensor (505), and a level (506). The semi-circular guide rail (501) is fixedly arranged on the top surface of the carrier (301). The arc-shaped slider (502) is movably arranged on the semi-circular guide rail (501). The support arm (503) is in an "L" shape and one end thereof is fixedly connected to the convex center of the arc-shaped slider (502). The direction finder (504) is fixedly installed on the concave surface at the bottom of the support arm (503). The magnetic pole sensor (505) is fixedly arranged at the other end of the support arm (503). The level (506) is installed on the top surface of the carrier (301); 5. A wind turbine generator set wind angle deviation calibration device according to claim 4, characterized in that: The calibration component (5) further includes a positioning magnetic pole (507). The positioning magnetic pole (507) is fixedly installed on the wind vane (4), and the positioning magnetic pole (507) and the magnetic pole sensor (505) are located on the same horizontal plane.

6. A wind turbine generator set wind angle deviation calibration device according to claim 1, characterized in that: The outer peripheral surface of the bottom end of the support column (1) is fixedly connected to a mounting base (6) via a bracket.

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