Wind generating set operation monitoring equipment

Abstract

The utility model discloses operation monitoring equipment for a wind generating set, which relates to the technical field of detection equipment and comprises a vertical shaft wind generating set, the vertical shaft wind generating set comprises a blade support and a blade shaft rod assembled on the blade support, the blade support comprises mounting seats which are distributed in parallel along the vertical direction, and ports of the mounting seats are distributed adjacently. A rotating part fixedly connected with one end of the blade shaft rod is rotationally arranged in the mounting seat, and a convex part is fixedly arranged on the rotating part; the mounting seat is in threaded connection with a sealing cover which is inserted into the blade shaft rod, a shifting block is rotationally arranged on the inner side surface of the sealing cover, and the shifting block is matched with the lug boss in a blocking and detaching manner; the side faces of the adjacent sides of the shifting block and the sealing cover are each provided with an arch-shaped elastic metal reed. Electric pulse signals are generated through mechanical triggering so as to monitor the rotating speed of the blade.

Description

Technical Field

[0001] This utility model relates to detection equipment technology, specifically a wind turbine generator set operation monitoring device. Background Technology

[0002] Vertical axis wind turbines, also known as vertical shaft wind turbines, are a type of wind turbine that differs in structure from the common horizontal axis wind turbine (HAWT). Their key feature is that the rotor's axis of rotation is perpendicular to the ground, rather than parallel to it.

[0003] Core structural features of vertical shaft wind turbine generator sets:

[0004] Vertical spindle: Major components such as generators and gearboxes (if any) are usually located at the bottom of the tower or close to the ground, making maintenance relatively convenient.

[0005] Blade arrangement: The blades are arranged radially around the vertical axis. Common blade shapes include straight blades (H-type or Darrieus type), spiral blades (to reduce pulsating torque), or S-type (Savonius type).

[0006] Referring to the authorized Chinese patent, publication (announcement) number: CN103089547B, a balanced vertical axis large wind turbine generator set is disclosed.

[0007] In the existing technology, including the aforementioned patents, there is a general lack of effective monitoring technology for the critical operating conditions of vertical shaft wind turbine generators (especially blade rotation speed). Once the blade rotation speed exceeds the predetermined range, it may lead to generator failure, structural damage, or even safety accidents. Utility Model Content

[0008] The purpose of this invention is to provide a wind turbine generator set operation monitoring device to address the aforementioned shortcomings in the prior art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine generator set operation monitoring device, including a vertical shaft wind turbine generator set, which includes a blade support and a blade shaft mounted on the blade support. The blade support includes mounting seats that are distributed vertically in parallel and whose ports are adjacent to each other. A rotating part that is fixedly connected to one end of the blade shaft is rotatably disposed in the mounting seat. A protrusion is fixedly disposed on the rotating part.

[0010] The mounting base is threadedly connected to the cover on the blade shaft. The inner side of the cover is rotatably provided with a lever, and the lever and the protrusion are in a disengaging engagement.

[0011] The push block and the cover are respectively provided with arched elastic metal springs on their adjacent sides.

[0012] Preferably, a restraining ring cylinder is fixedly installed inside the mounting base, and a rotary bearing is fixedly installed inside the restraining ring cylinder.

[0013] An embedded ring is provided on one side of the rotating part, and the inner ring of the rotating bearing is embedded in the embedded ring.

[0014] Preferably, the end of the blade shaft is inserted into the inner ring of the rotary bearing.

[0015] Preferably, an external thread is fixedly provided on one side of the cover, and the external thread is threaded to the inner wall of the mounting base where an internal thread is provided.

[0016] Preferably, the forward end of the protrusion is tapered along the rotation direction of the blade shaft.

[0017] Preferably, the end of the lever is rotatably provided with a rubber wheel, which is in rolling connection with the conical shape.

[0018] Preferably, a V-shaped elastic plate is inserted between the cover and the lever.

[0019] Preferably, the V-shaped elastic plate is an elastic metal plate.

[0020] In the above technical solution, the wind turbine generator set operation monitoring device provided by this utility model has the following beneficial effects: During the rotation of the blade shaft, the rotating part is driven to rotate synchronously. During this process, the protrusion abuts against the lever, causing the lever to be pushed and rotated by the protrusion. This leads to the contact of two arched elastic metal springs, achieving electrical connection and generating an electrical signal. When the protrusion passes the lever, the lever returns to its original position, and the two arched elastic metal springs separate again. By monitoring and acquiring multiple continuous electrical signals, it is possible to determine whether the current blade shaft rotation speed is abnormal, facilitating timely repair in case of damage. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the mounting base and cover provided in an embodiment of the present utility model;

[0024] Figure 3An exploded structural diagram of the rotary bearing, mounting base, rotating part, and cover provided for an embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the structure of the cap and the lever provided in this embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the V-shaped elastic plate and the lever block provided in the embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Vertical shaft wind turbine generator set; 11. Blade support; 12. Blade shaft; 2. Mounting base; 21. Binding ring cylinder; 22. Rotary bearing; 3. Rotating part; 31. Protrusion; 32. Embedded ring; 4. Cover; 41. Ball bearing; 5. Pulley; 51. Rubber wheel; 6. Arched elastic metal spring; 7. V-shaped elastic plate. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] Please see Figure 1-5 This utility model provides a technical solution: a wind turbine generator set operation monitoring device, including a vertical shaft wind turbine generator set 1, which includes a blade support 11 and a blade shaft 12 mounted on the blade support 11. The blade support 11 includes mounting seats 2 that are distributed vertically in parallel and have adjacent ports. A rotating part 3 that is fixedly connected to one end of the blade shaft 12 is rotatably disposed in the mounting seat 2. A protrusion 31 is fixedly disposed on the rotating part 3.

[0031] The mounting base 2 is threadedly connected to the cover 4 on the blade shaft 12. The inner side of the cover 4 is rotatably provided with a lever 5, and the lever 5 and the protrusion 31 are in a disassembly engagement.

[0032] Arched elastic metal springs 6 are respectively provided on the adjacent side of the push block 5 and the cover 4.

[0033] Specifically, the mounting base 2 and the blade support 11 are welded together and are distributed in parallel along the vertical direction. The outer ring of the rotary bearing 22 is fixedly installed inside the restraining ring cylinder 21 welded to the mounting base 2, thereby forming a fixed connection between the outer ring and the restraining ring cylinder 21.

[0034] Furthermore, an embedded ring 32 is integrally formed on one side of the rotating part 3, and the inner ring of the rotary bearing 22 is embedded in the embedded ring 32. Thus, the rotating part 3, the blade shaft 12, and the inner ring of the rotary bearing 22 are integrated into one unit.

[0035] As described above, during the rotation of the blade shaft 12, the rotating part 3 is driven to rotate synchronously. During this process, the protrusion 31 abuts against the lever 5, causing the lever 5 to be pushed and rotated by the protrusion 31. This leads to the contact of the two arched elastic metal springs 6, achieving electrical connection and generating an electrical signal. When the protrusion 31 passes the lever 5, the lever 5 returns to its original position, and the two arched elastic metal springs 6 separate again. By monitoring and acquiring multiple continuous electrical signals, it is possible to determine whether the current rotation speed of the blade shaft 12 is abnormal, so as to facilitate timely repair in case of damage.

[0036] As a further embodiment of this utility model, combined with Figure 2 As shown, an external thread is fixedly provided on one side of the cover 4, and the external thread is threaded to the inner wall of the mounting base 2. An external hexagonal nut is provided on the side of the cover 4 opposite to the external thread to facilitate subsequent disassembly and installation.

[0037] As a further embodiment of this utility model, combined with Figure 3 As shown, along the rotation direction of the blade shaft 12, the forward end of the protrusion is conical.

[0038] Furthermore, a rubber wheel 51 is rotatably provided at the end of the lever 5, and the rubber wheel 51 is connected to the conical rolling mechanism.

[0039] Secondly, a V-shaped elastic plate 7 (elastic metal plate) is inserted between the cover 4 and the lever 5.

[0040] Specifically, multiple balls 41 arranged in a circumferential array are rotatably disposed on the end face of the external thread portion, and these balls 41 are in rolling connection with the rotating portion 3. During the process, the conical surface of the protrusion 31 first contacts the rubber wheel 51 and then pushes against it, thereby causing the shift block 5 to deflect out of the moving path of the protrusion 31. When the protrusion 31 passes the shift block 5, the shift block 5 returns to its original position, and the two arched elastic metal springs 6 separate again. By monitoring and acquiring multiple continuous electrical signals, it is determined whether the current rotation speed of the blade shaft 12 is abnormal, so as to facilitate timely repair after damage.

[0041] Working principle: When the blade shaft 12 rotates, it drives the rotating part 3 and its protrusion 31 to rotate synchronously. When the conical surface of the protrusion 31 contacts and pushes the rubber wheel 51 at the end of the lever 5, the lever 5 deflects around its axis against the elastic force of the V-shaped elastic plate 7. This deflection causes the first arched elastic metal spring 6a fixed on the lever 5 to contact and conduct with the second arched elastic metal spring 6b fixed on the cover 4, generating an electrical pulse signal. The external monitoring circuit captures this signal through wires. As the protrusion 31 passes the highest point of the rubber wheel 51, under the action of the reset elastic force of the V-shaped elastic plate 7, the lever 5 drives the rubber wheel 51 to quickly return to its original position, and the two arched elastic metal springs 6 separate again. The above contact-conduction-separation process occurs once for every rotation of the rotating part 3, generating an electrical pulse. The external monitoring circuit can calculate the actual rotational speed of the blade shaft 12 by measuring the time interval of the continuous pulse signals. By determining whether the rotational speed exceeds the preset safety range, the operating status of the wind turbine generator can be monitored in real time, so that early warnings can be issued or protective measures can be taken in time when abnormalities occur (rotational speed too high or too low) to prevent equipment damage.

[0042] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wind turbine generator set operation monitoring device, comprising a vertical shaft wind turbine generator set (1), which includes a blade support (11) and a blade shaft (12) mounted on the blade support (11), characterized in that, The blade support (11) includes mounting seats (2) that are arranged vertically in parallel and adjacent to each other at the port. A rotating part (3) that is fixedly connected to one end of the blade shaft (12) is rotatably provided in the mounting seat (2). A protrusion (31) is fixedly provided on the rotating part (3). The mounting base (2) is threadedly connected to the cover (4) inserted into the blade shaft (12). The inner side of the cover (4) is rotatably provided with a lever (5). The lever (5) and the protrusion (31) are in a blocking and dismantling engagement. The adjacent sides of the push block (5) and the cover (4) are respectively provided with arched elastic metal springs (6).

2. The wind turbine generator set operation monitoring equipment according to claim 1, characterized in that, A binding ring cylinder (21) is fixedly installed inside the mounting base (2), and a rotary bearing (22) is fixedly installed inside the binding ring cylinder (21). An embedded ring (32) is provided on one side of the rotating part (3), and the inner ring of the rotating bearing (22) is embedded in the embedded ring (32).

3. The wind turbine generator set operation monitoring equipment according to claim 2, characterized in that, The end of the blade shaft (12) is inserted into the inner ring of the rotary bearing (22).

4. The wind turbine generator set operation monitoring equipment according to claim 1, characterized in that, The cover (4) is fixedly provided with an external thread on one side, and the external thread is assembled with the inner wall of the mounting base (2) which has an internal thread.

5. The wind turbine generator set operation monitoring equipment according to claim 1, characterized in that, Along the rotation direction of the blade shaft (12), the forward end of the protrusion is tapered.

6. The wind turbine generator set operation monitoring equipment according to claim 5, characterized in that, The end of the lever (5) is rotatably provided with a rubber wheel (51), and the rubber wheel (51) is in rolling connection with the conical shape.

7. The wind turbine generator set operation monitoring equipment according to claim 1, characterized in that, A V-shaped elastic plate (7) is inserted between the cover (4) and the lever (5).

8. The wind turbine generator set operation monitoring equipment according to claim 7, characterized in that, The V-shaped elastic plate (7) is an elastic metal plate.

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