Tail vane of wind driven generator

Abstract

The utility model relates to the technical field of wind driven generators, and discloses a tail vane of a wind driven generator, which comprises a vane, a fixing plate, a tail vane rod and a tail vane blade, and the surface of one side of the fixing plate is fixedly connected with an inner embedded block. According to the tail vane of the wind driven generator, through the split type design of the vane and the fixing plate and the combination of the clamping structure of the inner embedded block and the embedded groove, rapid assembly is achieved, transverse displacement is prevented, the first fastening bolts distributed at the four corners evenly transmit loads, and the connecting strength is improved; the tail vane rod and the mounting block are of an inserting fit and annular groove limiting structure, axial movement is prevented through circumferential clamping of a second fastening bolt, meanwhile, a fixing ring plate and a first threaded rod are in threaded cup joint and matched with a first nut for bidirectional locking, angle fine adjustment is supported, and the anti-vibration stability is improved. The limiting fender and the groove form embedded constraint, and the double pressing design of the second threaded rod and the second nut of the mounting head is combined, so that the mounting gap is eliminated, and the torsional displacement of the tail vane blade is limited.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, specifically to a tail rudder for a wind turbine. Background Technology

[0002] In wind turbine systems, the tail rudder is the core steering mechanism, and its performance directly affects power generation efficiency and equipment safety.

[0003] In the existing technology, traditional split tail rudders need to be fixed at multiple points with bolt groups. Precise alignment is required during assembly, and a large number of fasteners need to be disassembled for later maintenance, which is cumbersome. Although some integrated designs simplify the structure, they sacrifice maintainability. The overall replacement cost is high after failure. They do not support angle fine adjustment and have poor vibration stability.

[0004] Therefore, it is necessary to propose a tail rudder for a wind turbine. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a tail rudder for a wind turbine, which has the advantages of simple and quick installation and maintenance and the ability to finely adjust the angle, thus overcoming the defects of existing technologies mentioned in the background section.

[0006] This utility model provides the following technical solution: a tail rudder for a wind turbine, comprising a rudder, a fixed plate, a tail rudder rod, and a tail rudder blade. An inlaid block is fixedly connected to one side surface of the fixed plate, and an mounting block is fixedly connected to the other side surface of the fixed plate. An insertion hole is provided at the end of the mounting block, and one end of the tail rudder rod is inserted into the insertion hole. The tail rudder blade is located at the other end of the tail rudder rod, and an mounting head is fixedly connected to one end of the tail rudder blade. The mounting head is sleeved on one end of the tail rudder rod.

[0007] Preferably, one end of the rudder has an inlay groove, the inner inlay block is inserted into the inlay groove, and a fastening bolt is threaded into each of the four corners of the fixing plate, the fastening bolt being threadedly connected to the rudder.

[0008] Preferably, the surface of the tail rudder is provided with an annular groove, and the side of the mounting block is threaded with a plurality of fastening bolts II, the ends of which are movably engaged with the annular groove.

[0009] Preferably, a fixing ring plate is fixedly connected to the surface of the tail rudder stick, and a circular hole is fixedly opened on the surface of the fixing ring plate. A threaded rod is fixedly connected to one end of the mounting block, and a nut is threadedly fitted onto the surface of the threaded rod. The threaded rod is inserted into the inside of the circular hole, and the nut is tightly abutted against one side surface of the fixing ring plate.

[0010] Preferably, a limiting wing plate is fixedly connected to one end surface of the tail rudder, and the edge of the limiting wing plate is provided with a groove.

[0011] Preferably, one end of the mounting head is fixedly connected to a threaded rod two, and a nut two is threadedly connected to the surface of the threaded rod two. The threaded rod two is engaged inside the groove, and one end of the nut two is tightly abutted against the side of the limiting fender.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The tail rudder of this wind turbine features a split design between the rudder and the mounting plate, combined with an interlocking structure of the inner insert and the slot, enabling rapid assembly and preventing lateral displacement. Four corner fastening bolts evenly distribute the load, enhancing connection strength. The tail rudder rod and mounting block employ a plug-in fit and annular groove limiting structure, with circumferential interlocking of the fastening bolts preventing axial movement. Simultaneously, the threaded engagement of the fixed ring plate and the threaded rod with the nut provides bidirectional locking, supporting both angle fine-tuning and enhanced vibration resistance. The limiting fender and groove form a fitting constraint, combined with the double-clamping design of the threaded rod and nut on the mounting head, eliminating installation gaps and limiting torsional displacement of the tail rudder blades. The overall structure, through multi-level positioning, redundant fixing, and anti-loosening design, significantly improves the connection reliability and adjustment flexibility of the tail rudder system under complex operating conditions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of the rudder and the fixed plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the tail rudder stock structure of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 100. Rudder; 101. Inlay slot;

[0020] 200. Fixing plate; 201. Inset block; 202. Fastening bolt one; 203. Mounting block; 204. Insertion hole; 205. Threaded rod one; 206. Nut one; 207. Fastening bolt two;

[0021] 300. Tail rudder stick; 301. Annular groove; 302. Fixing ring plate; 303. Circular hole; 304. Limiting fender; 305. Groove;

[0022] 400. Tail rudder blade; 401. Mounting head; 402. Threaded rod II; 403. Nut II. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-3 As shown, a tail rudder for a wind turbine includes a rudder 100, a fixed plate 200, a tail rudder stick 300, and a tail rudder blade 400. An inlaid block 201 is fixedly connected to one side surface of the fixed plate 200, and an mounting block 203 is fixedly connected to the other side surface of the fixed plate 200. An insertion hole 204 is provided at the end of the mounting block 203. One end of the tail rudder stick 300 is inserted into the insertion hole 204. The tail rudder blade 400 is located at the other end of the tail rudder stick 300. An mounting head 401 is fixedly connected to one end of the tail rudder blade 400, and the mounting head 401 is sleeved on one end of the tail rudder stick 300. The rudder 100 and the mounting plate 200 adopt a split structure design to improve the convenience of assembly and maintenance; the inner inlay block 201 and the mounting block 203 form a dual positioning structure to enhance the stability of component connection; the plug-in connection between the socket 204 and the tail rudder stick 300 simplifies the installation process; the sleeve structure between the mounting head 401 and the tail rudder stick 300 enables quick disassembly and assembly of the tail rudder blade 400.

[0025] In a further preferred embodiment, one end of the rudder 100 has an inlay groove 101, and an inner inlay block 201 is inserted into the inlay groove 101. Fastening bolts 202 are threaded into each of the four corners of the fixing plate 200, and the fastening bolts 202 are threadedly connected to the rudder 100. The engaging design of the inlay groove 101 and the inner inlay block 201 prevents lateral displacement of the fixing plate 200; the fastening bolts 202 distributed at the four corners evenly distribute the load, avoiding stress concentration and improving the connection strength between the rudder 100 and the fixing plate 200.

[0026] In a further preferred embodiment, the surface of the tail rudder stick 300 is provided with an annular groove 301, and the side of the mounting block 203 is threaded with multiple fastening bolts 207, the ends of which are movably engaged with the annular groove 301. The annular groove 301 and the fastening bolts 207 form a circumferential limiting structure to prevent the tail rudder stick 300 from moving axially; multiple sets of fastening bolts 207 provide redundant fixing points, enhancing the connection reliability between the tail rudder stick 300 and the mounting block 203.

[0027] In a further preferred embodiment, a fixing ring plate 302 is fixedly connected to the surface of the tail rudder stick 300. A circular hole 303 is fixedly formed on the surface of the fixing ring plate 302. A threaded rod 205 is fixedly connected to one end of the mounting block 203. A nut 206 is threadedly fitted onto the surface of the threaded rod 205, which is inserted into the circular hole 303. The nut 206 tightly abuts against one side surface of the fixing ring plate 302. The cooperation between the fixing ring plate 302 and the threaded rod 205 enables the tail rudder stick 300 to finely adjust its angle. The bidirectional locking design of the nut 206 counteracts loosening caused by vibration, ensuring the stability of the connection angle between the tail rudder stick 300 and the mounting block 203.

[0028] In a further preferred embodiment, a limiting fender 304 is fixedly connected to one end surface of the tail rudder stick 300, and a groove 305 is provided on the edge of the limiting fender 304. The limiting fender 304 provides physical constraint on the swing range of the tail rudder blade 400, preventing overload deviation under extreme operating conditions; the groove 305 forms a fitting structure with the mounting head 401, enhancing the axial positioning accuracy of the tail rudder blade 400 and the tail rudder stick 300.

[0029] In a further preferred embodiment, one end of the mounting head 401 is fixedly connected to a threaded rod 402, and a nut 403 is threadedly connected to the surface of the threaded rod 402. The threaded rod 402 is engaged inside the groove 305, and one end of the nut 403 is in close contact with the side of the limiting fender 304. The cooperation between the threaded rod 402 and the groove 305 ensures the anti-loosening installation of the tail rudder 400; the bidirectional clamping force of the nut 403 eliminates the installation gap and improves the anti-torsional capability of the tail rudder 400 on the limiting fender 304.

[0030] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tail rudder for a wind turbine, comprising a rudder (100), a mounting plate (200), a tail rudder stock (300), and a tail rudder blade (400), characterized in that: An inlaid block (201) is fixedly connected to one side surface of the fixed plate (200), and an mounting block (203) is fixedly connected to the other side surface of the fixed plate (200). An insertion hole (204) is provided at the end of the mounting block (203). One end of the tail rudder (300) is inserted into the insertion hole (204). The tail rudder blade (400) is located at the other end of the tail rudder (300). An mounting head (401) is fixedly connected to one end of the tail rudder blade (400), and the mounting head (401) is sleeved on one end of the tail rudder (300).

2. The tail rudder of a wind turbine according to claim 1, characterized in that: The rudder (100) has an inlay groove (101) at one end, and the inner inlay block (201) is inserted into the inlay groove (101). The four corners of the fixing plate (200) are threaded with fastening bolts (202), and the fastening bolts (202) are threadedly connected to the rudder (100).

3. The tail rudder of a wind turbine according to claim 1, characterized in that: The surface of the tail rudder (300) is provided with an annular groove (301), and the side of the mounting block (203) is threaded with a plurality of fastening bolts (207), the ends of the fastening bolts (207) being movably engaged with the annular groove (301).

4. The tail rudder of a wind turbine according to claim 1, characterized in that: A fixing ring plate (302) is fixedly connected to the surface of the tail rudder (300). A circular hole (303) is fixedly opened on the surface of the fixing ring plate (302). A threaded rod (205) is fixedly connected to one end of the mounting block (203). A nut (206) is threadedly fitted onto the surface of the threaded rod (205). The threaded rod (205) is inserted into the inside of the circular hole (303). The nut (206) is tightly abutted against one side surface of the fixing ring plate (302).

5. The tail rudder of a wind turbine according to claim 1, characterized in that: One end of the tail rudder (300) is fixedly connected to a limiting fender (304), and the edge of the limiting fender (304) is provided with a groove (305).

6. The tail rudder of a wind turbine according to claim 5, characterized in that: One end of the mounting head (401) is fixedly connected to a threaded rod (402), and a nut (403) is threadedly connected to the surface of the threaded rod (402). The threaded rod (402) is engaged inside the groove (305), and one end of the nut (403) is in close contact with the side of the limiting fender (304).

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