Connecting structure for metal cabin housing of wind driven generator

Abstract

The utility model discloses a wind driven generator metal cabin housing connecting structure which comprises a cabin housing and a generator set, the generator set is fixedly installed on a first supporting frame, the bottom of the first supporting frame is fixedly connected with a second supporting frame through bolts, a transmission gear is arranged in the center of the bottom of the second supporting frame, and the transmission gear is fixedly connected with the second supporting frame through bolts. A rotating device is fixedly installed on one side of the transmission gear, the transmission gear is fixedly installed on a flange plate at the top end of the tower drum body through bolts, the second supporting frame is fixedly installed in the cabin shell, and a movable groove is formed in the position, corresponding to the transmission gear, of the bottom of the cabin shell. And a limiting mechanism is fixedly mounted on the outer wall of the movable groove. The engine room housing is simple in structure and better in stability, and the limiting mechanism and the reinforcing connecting plate are arranged between the engine room housing and the tower drum body, so that the connecting stability of the engine room housing is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine nacelle covers, in particular to a metal nacelle cover connection structure for a wind turbine. Background Art

[0002] A wind turbine is a device that converts wind energy into electrical energy. Its basic working principle is to use wind power to drive the windmill blades to rotate, and then transfer mechanical energy to the generator through the transmission device, so that it is converted into electrical energy output. The main components of a wind turbine include the following aspects: Wind rotor: composed of blades, directly interacting with the wind, converting wind kinetic energy into mechanical energy; Cabin: Contains all major components except the wind rotor, usually including speed control device, transmission device, brake device, generator, controller, etc.; Tower: Supports the wind rotor and cabin, and provides sufficient height to obtain more stable wind energy resources; Wind device: Helps the wind rotor align with the wind direction to maximize the capture of wind energy.

[0003] The wind turbine nacelle cover is an important part of the wind turbine generator set. Its function is to protect the key equipment in the nacelle from damage by bad weather (such as rain, dust, and solar ultraviolet rays). The nacelle cover is usually made of light, high-strength, and corrosion-resistant materials, such as fiberglass. However, the current wind turbine nacelle cover is usually directly fixed on the metal support frame at the bottom of the generator set, and the generator set is usually fixedly connected to the tower body through the metal support frame. In this way, there is no effective connection between the wind turbine nacelle cover and the tower body, so there is a certain instability. Utility Model Content

[0004] The utility model aims to provide a metal nacelle cover connection structure of a wind turbine generator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal nacelle cover connection structure of a wind turbine, comprising a nacelle shell and a generator set, wherein the generator set is fixedly mounted on a first support frame, the bottom of the first support frame is fixedly connected to a second support frame by bolts, a transmission gear is arranged at the bottom center of the second support frame, a rotating device is fixedly mounted on one side of the transmission gear, the transmission gear is fixedly mounted on a flange at the top of a tower body by bolts, the second support frame is fixedly mounted inside the nacelle shell, wherein a movable groove is provided at the bottom of the nacelle shell and corresponding to the position of the transmission gear, and a limiting mechanism is fixedly mounted on the outer wall of the movable groove.

[0006] Preferably, the outer edge of the transmission gear is fixedly mounted on a flange by bolts, wherein a reinforcing connecting plate is fixedly provided near the center of the transmission gear.

[0007] Preferably, a plurality of reinforcing plates are provided between the outer wall of the flange and the tower body, and a metal clamping block with an L-shaped structure is fixedly mounted on the inner wall of the tower body.

[0008] Preferably, one end of the clamping block is fixedly connected to the inner wall of the tower body, and the installation position is not higher than the position of the flange, and there is a certain gap between the clamping block and the inner wall of the tower body to form a clamping groove.

[0009] Preferably, the reinforcing connecting plate is embedded in the slot, and a fixing bolt is screwed and connected between the outer wall of the tower body and the outer wall of the block.

[0010] Preferably, the limiting mechanism consists of a first protective cover, a second protective cover, a limiting block and a fixing block, wherein the first protective cover and the second protective cover are both semicircular L-shaped metal blocks.

[0011] Preferably, limit blocks are provided at the bottom of the first protective cover and the second protective cover, and the fixing block is fixedly mounted on the outer wall of the tower body, and an open sliding groove is provided inside the fixing block.

[0012] Preferably, the limit block is embedded in the slide groove and is slidably connected in the slide groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a reinforcing connecting plate near the center of the transmission gear, and at the same time, a clamping block is fixedly connected to the inner wall of the tower body, and a clamping groove is formed between the clamping block and the inner wall of the tower body. In this way, not only can the transmission gear be fixedly connected by the flange, but also the clamping block can be embedded in the clamping groove and the fixing bolt can be screwed, so as to further increase the connection stability between the tower body and the transmission gear and maintain stable support for the generator set; at the same time, a fixing block is fixedly connected to the outer wall of the tower body, wherein an open annular groove is provided on the inner wall of the fixing block, and two semicircular protective covers are fixedly connected to the bottom of the cabin shell, and an L-shaped limit block is provided at the bottom of the protective cover, and the limit block is embedded in the slide groove, which not only does not affect the normal rotation of the cabin shell, but also can generate a certain limit fixing force on the cabin shell, thereby further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3It is a top view of the tower body of the utility model;

[0018] Figure 4 It is a top view of the flange of the utility model;

[0019] Figure 5 It is a top view of the protective cover of the utility model;

[0020] Figure 6 It is a top sectional view of the fixing block of the utility model;

[0021] Figure 7 It is a top sectional view of the cabin shell of the utility model.

[0022] In the figure: 1. cabin shell; 2. generator set; 3. first support frame; 4. second support frame; 41. transmission gear; 401. reinforcing connecting plate; 5. rotating device; 6. tower body; 61. flange; 601. reinforcing plate; 62. clamping block; 63. clamping slot; 7. movable slot; 8. limiting mechanism; 81. first protective cover; 82. second protective cover; 83. limiting block; 84. fixing block; 85. slide slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-7 The utility model provides a technical solution: a metal nacelle cover connection structure of a wind turbine, including a nacelle shell 1 and a generator set 2, the generator set 2 is fixedly installed on a first support frame 3, and the bottom of the first support frame 3 is fixedly connected to a second support frame 4 by bolts, so that not only the first support frame 3 can be used to stably support the generator set 2, but also the second support frame 4 can be used to stably install and connect the first support frame 3 to the top of the tower body 6.

[0025] A transmission gear 41 is provided at the center position of the bottom of the second support frame 4, and a rotating device 5 is fixedly installed on one side of the transmission gear 41, wherein the outer edge position of the transmission gear 41 is fixedly installed on the flange 61 by bolts, wherein a reinforcing connecting plate 401 is fixedly provided near the center of the circle of the transmission gear 41, and at the same time, the transmission gear 41 is fixedly installed on the flange 61 at the top of the tower body 6 by bolts, and a plurality of reinforcing plates 601 are provided between the outer wall of the flange 61 and the tower body 6, and an L-shaped metal clamping block 62 is fixedly installed on the inner wall of the tower body 6, and at the same time, one end of the clamping block 62 is fixedly connected to the inner wall of the tower body 6, and the installation position is not higher than the position of the flange 61, and there is a certain gap between the clamping block 62 and the inner wall of the tower body 6, and a clamping groove 63 is formed, wherein the reinforcing connecting plate 401 is embedded in the clamping groove 63, and a fixing bolt is screwed and connected between the outer wall of the tower body 6 and the outer wall of the clamping block 62, so that the transmission gear 41 is conveniently installed on the tower body 6, and the stability of the connection installation is further improved.

[0026] The second support frame 4 is fixedly installed inside the cabin shell 1, wherein a movable groove 7 is opened at the bottom of the cabin shell 1 and corresponding to the position of the transmission gear 41, and a limiting mechanism 8 is fixedly installed on the outer wall of the movable groove 7, wherein the limiting mechanism 8 is composed of a first protective cover 81, a second protective cover 82, a limiting block 83 and a fixed block 84, wherein the first protective cover 81 and the second protective cover 82 are both semicircular L-shaped metal blocks, so that not only can the first protective cover 81 and the second protective cover 82 be stably installed below the bottom of the movable groove 7, but also the first protective cover 81 and the second protective cover 82 can form a complete closed circle.

[0027] A limiting block 83 is provided at the bottom of the first protective cover 81 and the second protective cover 82, and a fixed block 84 is fixedly installed on the outer wall of the tower body 6, and an open slide groove 85 is provided inside the fixed block 84. At the same time, the limiting block 83 is embedded in the slide groove 85 and is slidably connected in the slide groove 85. This not only does not affect the rotation of the cabin shell 1 on the tower body 6, but also the fixed block 84 and the limiting block 83 can be used to stably install the cabin shell 1 on the tower body 6, thereby further improving the stability of the installation.

[0028] Working principle: When the utility model is used, the tower body 6 is first stably installed on the ground, and then the second support frame 4 is stably installed in the cabin shell 1, and the first support frame 3 is stably installed on the second support frame 4, and the generator set 2 is further stably installed on the first support frame 3. At this time, the cabin shell 1 is lifted to the top of the tower body 6 by a tower crane, and the transmission gear 41 is placed on the flange 61, and the reinforcing connecting plate 401 at the bottom of the transmission gear 41 is embedded in the card slot 63, and the transmission gear 41 is stably installed on the flange 61 by fixing bolts. At the same time, the reinforcing connecting plate 401 is stably installed between the inner wall of the tower body 6 and the inner wall of the block 62, so as to further increase the connection stability of the support frame, and a fixing block 84 is arranged on the outer wall of the tower body 6, and an open annular slide groove 85 is arranged inside the fixing block 84. At this time, the first protective cover 81 and the second protective cover 82 are respectively fixedly installed on both sides of the movable groove 7, and the limit block 83 is embedded in the slide groove 85. This not only does not affect the normal rotation of the cabin shell 1, but also can further increase the connection stability of the cabin shell 1, and the safety is higher.

[0029] 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 terms "include", "comprise" or any other variants thereof are 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.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal nacelle cover connection structure of a wind turbine generator, comprising a nacelle shell (1) and a generator set (2), characterized in that: The generator set (2) is fixedly mounted on a first support frame (3); the bottom of the first support frame (3) is fixedly connected to a second support frame (4) by bolts; a transmission gear (41) is provided at the center of the bottom of the second support frame (4); a rotating device (5) is fixedly mounted on one side of the transmission gear (41); the transmission gear (41) is fixedly mounted on a flange (61) at the top of a tower body (6) by bolts; the second support frame (4) is fixedly mounted inside a cabin shell (1); a movable groove (7) is provided at the bottom of the cabin shell (1) and corresponding to the position of the transmission gear (41); a limiting mechanism (8) is fixedly mounted on the outer wall of the movable groove (7).

2. The metal nacelle cover connection structure of a wind turbine generator according to claim 1, characterized in that: The outer edge of the transmission gear (41) is fixedly mounted on the flange (61) by means of bolts, wherein a reinforcing connecting plate (401) is fixedly arranged near the center of the transmission gear (41).

3. The metal nacelle cover connection structure of a wind turbine generator according to claim 2, characterized in that: A plurality of reinforcing plates (601) are arranged between the outer wall of the flange (61) and the tower body (6), and a metal clamping block (62) with an L-shaped structure is fixedly mounted on the inner wall of the tower body (6).

4. The metal nacelle cover connection structure of a wind turbine generator according to claim 3, characterized in that: One end of the clamping block (62) is fixedly connected to the inner wall of the tower body (6), and the installation position is not higher than the position of the flange (61). There is a certain gap between the clamping block (62) and the inner wall of the tower body (6), and a clamping groove (63) is formed.

5. The metal nacelle cover connection structure of a wind turbine generator according to claim 4, characterized in that: The reinforcing connecting plate (401) is embedded in the clamping groove (63), and a fixing bolt is screwed and connected between the outer wall of the tower body (6) and the outer wall of the clamping block (62).

6. The metal nacelle cover connection structure of a wind turbine generator according to claim 5, characterized in that: The limiting mechanism (8) is composed of a first protective cover (81), a second protective cover (82), a limiting block (83) and a fixing block (84), wherein the first protective cover (81) and the second protective cover (82) are both semicircular L-shaped metal blocks.

7. The metal nacelle cover connection structure of a wind turbine generator according to claim 6, characterized in that: A limiting block (83) is provided at the bottom of the first protective cover (81) and the second protective cover (82), and the fixing block (84) is fixedly mounted on the outer wall of the tower body (6), and an open sliding groove (85) is provided inside the fixing block (84).

8. The metal nacelle cover connection structure of a wind turbine generator according to claim 7, characterized in that: The limit block (83) is embedded in the slide groove (85) and is slidably connected in the slide groove (85).

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