Fixing device of wind generating set

Abstract

The utility model relates to the technical field of wind power generation devices, and particularly discloses a fixing device of a wind generating set, the wind generating set comprises a cabin frame, a main shaft, a contraction disc and a gear box, the contraction disc is simultaneously sleeved and connected with the input end of the main shaft and the input end of the gear box, and the gear box is connected to the cabin frame. The clamping and positioning assembly is connected to the outer circumferential face of the main shaft in a pressed mode and connected to the cabin frame. According to the arrangement, the clamping and positioning assembly is introduced to clamp and fix the main shaft on the cabin frame at the top end of the high-altitude tower, when detection and maintenance are needed, the shrinkage disc and the gear box can be sequentially disassembled on the tower so that the shrinkage disc can be independently adjusted or the gear box can be independently disassembled, the overall operation process is greatly simplified, and the working efficiency is improved. And the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation devices, in particular to a fixing device for a wind power generator set. Background Art

[0002] A wind turbine is a system that converts the kinetic energy of wind into electrical energy. It mainly includes: a high-altitude tower, a wind rotor, a main shaft, a shrink disk, a wind gearbox and a generator. The high-altitude tower is mainly used to support the wind turbine. The shrink disk connects the main shaft and the input shaft of the wind gearbox at the same time. When working, the wind rotor transmits the kinetic energy of the wind to the wind gearbox through the main shaft. The wind gearbox then transmits the power to the generator through a combination of large and small gears, and makes it obtain the corresponding speed.

[0003] As the service life of a wind turbine generator set approaches its design life or some unexpected factors occur, it is necessary to adjust or repair the shrink disk on the tower, or to remove the wind turbine gearbox separately. However, in existing wind turbine generator sets, the main shaft, shrink disk and wind turbine gearbox are assembled as a whole and fixed in the nacelle at the top of the high-altitude tower. It is not possible to adjust the shrink disk separately or to remove the wind turbine gearbox separately. The only way is to introduce a crane device to remove the overall structure, and then lift the entire machine after adjustment and assembly are completed under the tower. The overall operation process is complicated, which greatly reduces work efficiency.

[0004] Therefore, there is an urgent need for a fixing device for a wind turbine generator set to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a fixing device for a wind turbine generator set, so as to solve the problem that the shrink disk cannot be adjusted and processed separately or the wind turbine gear box cannot be removed from the rack separately in the existing wind turbine generator set.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a fixing device for a wind turbine generator set, which includes a nacelle frame, a main shaft, a shrink disk and a gear box. The shrink disk is simultaneously sleeved and connected to the main shaft and the input end of the gear box. The gear box is connected to the nacelle frame. The fixing device includes a clamping and positioning component, which is crimped on the outer peripheral surface of the main shaft and connected to the nacelle frame.

[0008] As a preferred technical solution for the fixing device of the above-mentioned wind turbine generator set, the clamping and positioning assembly includes a crimping piece, a first mounting portion and a second mounting portion, the crimping piece abuts against the outer peripheral surface of the main shaft, the first mounting portion and the second mounting portion are respectively protruded at both ends of the crimping piece, and the main shaft is located between the first mounting portion and the second mounting portion, and the fixing device also includes two connecting components, one of which is connected between the first mounting portion and the nacelle frame, and the other connecting component is connected between the second mounting portion and the nacelle frame.

[0009] As a preferred technical solution for the fixing device of the above-mentioned wind turbine generator set, the connecting assembly includes a positioning plate and several first connecting members. The nacelle frame is provided with two mounting holes, and the two mounting holes are arranged in a one-to-one correspondence with the two connecting assemblies. The positioning plate is installed above the mounting holes and supported on the upper end surface of the nacelle frame. Several first connecting members are connected between the first mounting part or the second mounting part and the positioning plate.

[0010] As a preferred technical solution for the fixing device of the above-mentioned wind turbine generator set, the connecting assembly also includes a number of first support frames, a number of second connecting members and a base, a number of the first support frames are all arranged above the mounting hole, and a number of the first support frames are all supported on the upper end surface of the nacelle frame, the base is arranged below the mounting hole, a number of the first support frames are all connected to the base, and a number of the second connecting members are connected between the positioning plate and the base.

[0011] As a preferred technical solution for the fixing device of the above-mentioned wind turbine generator set, the connecting assembly also includes a plurality of second support frames, which are all connected to the base and located below the mounting hole, and are all in contact with the lower end surface of the nacelle frame.

[0012] As a preferred technical solution for the fixing device of the above-mentioned wind turbine generator set, the positioning plate is provided with a plurality of limiting grooves, the plurality of limiting grooves are provided in one-to-one correspondence with the plurality of first supporting frames, and the first supporting frames are located in the limiting grooves.

[0013] As a preferred technical solution for the fixing device of the above-mentioned wind turbine generator set, the first connecting member includes a lifting rod and a fixing rod, the fixing rod is connected to the positioning plate, one end of the lifting rod is threadedly connected to the fixing rod, and the other end of the lifting rod is passed through the first mounting portion or the second mounting portion and is threadedly connected to the nut.

[0014] As an optimal technical solution for the fixing device of the above-mentioned wind turbine generator set, the crimping part includes a first crimping seat and a second crimping seat, the first crimping seat is sleeved on the outer circumferential surface of the second crimping seat, the second crimping seat is abutted against the outer circumferential surface of the main shaft, and the first mounting portion and the second mounting portion are respectively protruded at both ends of the first crimping seat.

[0015] As a preferred technical solution for the fixing device of the above-mentioned wind turbine generator set, the second pressing seat is made of brass material.

[0016] As a preferred technical solution for the fixing device of the above-mentioned wind turbine generator set, the first pressing seat and the second pressing seat are both semicircular arc-shaped.

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides a fixing device for a wind turbine generator set, which includes a nacelle frame, a main shaft, a shrink disk, and a gear box. The shrink disk is simultaneously sleeved to connect the main shaft and the input end of the gear box. The gear box is connected to the nacelle frame. The fixing device includes a clamping and positioning assembly, which is crimped onto the outer peripheral surface of the main shaft and is connected to the nacelle frame. In this arrangement, the clamping and positioning assembly is introduced to the nacelle frame at the top of the high-altitude tower to clamp and fix the main shaft. When inspection and maintenance are required, the shrink disk and gear box can be disassembled in sequence on the tower to adjust and handle the shrink disk separately or to complete the removal of the gear box separately, greatly simplifying the overall operation process and further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the fixing device of the wind turbine generator set provided by the utility model Figure 1 ;

[0020] Figure 2 Schematic diagram of the structure of the fixing device of the wind turbine generator set provided by the utility model Figure 2 ;

[0021] Figure 3 Schematic diagram of the structure of the fixing device of the wind turbine generator set provided by the utility model Figure 3 .

[0022] in:

[0023] 1. Nacelle frame; 2. Spindle;

[0024] 3. Pressing piece; 31. First pressing seat; 32. Second pressing seat;

[0025] 4. First mounting portion; 5. Second mounting portion; 6. Positioning plate;

[0026] 7. First connecting member; 71. Lifting rod; 72. Fixing rod;

[0027] 8. Second connecting member; 9. First supporting frame; 10. Second supporting frame; 11. Base. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0030] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or removable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0031] Unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0033] like Figures 1 to 3 As shown, this embodiment provides a fixing device for a wind turbine generator set, which includes a nacelle frame 1, a main shaft 2, a shrink disk and a gear box. The shrink disk is also sleeved to connect the main shaft 2 and the input end of the gear box. The gear box is connected to the nacelle frame 1. The fixing device includes a clamping and positioning assembly, which is crimped onto the outer circumference of the main shaft 2 and is connected to the nacelle frame 1. In this arrangement, the clamping and positioning assembly is introduced to the nacelle frame 1 at the top of the high-altitude tower to clamp and fix the main shaft 2. When inspection and maintenance are required, the shrink disk and the gear box can be disassembled in sequence on the tower to adjust and handle the shrink disk separately or to complete the removal of the gear box separately, which greatly simplifies the overall operation process and further improves work efficiency.

[0034] Optionally, in order to enhance the pressing and fixing effect of the main shaft 2, the clamping and positioning assembly includes a crimping piece 3, a first mounting portion 4 and a second mounting portion 5. The crimping piece 3 abuts against the outer peripheral surface of the main shaft 2, and the first mounting portion 4 and the second mounting portion 5 are respectively protruded at both ends of the crimping piece 3. The main shaft 2 is located between the first mounting portion 4 and the second mounting portion 5. The fixing device also includes two connecting components, one of which is connected between the first mounting portion 4 and the nacelle frame 1, and the other connecting component is connected between the second mounting portion 5 and the nacelle frame 1.

[0035] Specifically, the following scheme is given as an example in this embodiment: the connecting component includes a positioning plate 6, several first connecting members 7, several second connecting members 8, several first support frames 9 and a base 11. The cabin frame 1 has two mounting holes, and the two mounting holes are arranged in a one-to-one correspondence with the two connecting components. The positioning plate 6 is installed above the mounting hole and supported on the upper end surface of the cabin frame 1. Several first connecting members 7 are connected between the first mounting part 4 or the second mounting part 5 and the positioning plate 6. Several first support frames 9 are all arranged above the mounting hole, and several first support frames 9 are all supported on the upper end surface of the cabin frame 1. The base 11 is arranged below the mounting hole. Several first support frames 9 are all connected to the base 11, and several second connecting members 8 are connected between the positioning plate 6 and the base 11.

[0036] Furthermore, the connection assembly also includes a plurality of second support frames 10, each of which is connected to the base 11 via pins and is located below the mounting hole. The plurality of second support frames 10 abut against the lower end surface of the nacelle frame 1. Furthermore, the lower end surface of the nacelle frame 1 is provided with a slot, into which the plurality of second support frames 10 can be opened and snapped.

[0037] Optionally, in order to further enhance the connection stability of the base 11 , the positioning plate 6 is provided with a plurality of limiting grooves, and the plurality of limiting grooves are provided in one-to-one correspondence with the plurality of first support frames 9 , and the first support frames 9 are located in the limiting grooves.

[0038] Optionally, the first connecting member 7 includes a lifting rod 71 and a fixing rod 72. The fixing rod 72 is connected to the positioning plate 6. One end of the lifting rod 71 is threadedly connected to the fixing rod 72, and the other end of the lifting rod 71 passes through the first mounting portion 4 or the second mounting portion 5 and is threadedly connected to a nut. This arrangement allows the height of the clamping and positioning assembly to be adjusted by controlling the depth to which the lifting rod 71 is screwed into the fixing rod 72. This arrangement is highly versatile and can adapt to different height conditions.

[0039] Optionally, in order to further enhance the pressing and fixing effect on the main shaft 2, the crimping member 3 includes a first pressing seat 31 and a second pressing seat 32. The first pressing seat 31 is sleeved on the outer circumference of the second pressing seat 32, and the second pressing seat 32 abuts against the outer circumference of the main shaft 2. The first mounting portion 4 and the second mounting portion 5 are respectively protruded at both ends of the first pressing seat 31. Specifically, the first pressing seat 31 and the second pressing seat 32 are both semicircular.

[0040] Optionally, in order to prevent the second pressing seat 32 from being damaged by compression due to direct contact with the main shaft 2, the second pressing seat 32 is made of brass material.

[0041] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A fixing device for a wind turbine generator set, the wind turbine generator set comprising a nacelle frame (1), a main shaft (2), a shrink disk and a gear box, the shrink disk being simultaneously sleeved to connect the main shaft (2) and the input end of the gear box, the gear box being connected to the nacelle frame (1), characterized in that: The fixing device comprises a clamping and positioning component, the clamping and positioning component is pressed onto the outer peripheral surface of the main shaft (2), and the clamping and positioning component is connected to the nacelle frame (1).

2. The fixing device of a wind turbine generator set according to claim 1, characterized in that: The clamping and positioning assembly includes a crimping piece (3), a first mounting portion (4) and a second mounting portion (5); the crimping piece (3) abuts against the outer peripheral surface of the main shaft (2); the first mounting portion (4) and the second mounting portion (5) are respectively protruded at the two ends of the crimping piece (3); the main shaft (2) is located between the first mounting portion (4) and the second mounting portion (5); the fixing device also includes two connecting assemblies, one of which is connected between the first mounting portion (4) and the cabin frame (1), and the other of which is connected between the second mounting portion (5) and the cabin frame (1).

3. The fixing device of a wind turbine generator set according to claim 2, characterized in that: The connecting assembly includes a positioning plate (6) and a plurality of first connecting members (7). The cabin frame (1) is provided with two mounting holes. The two mounting holes are arranged in a one-to-one correspondence with the two connecting assemblies. The positioning plate (6) is installed above the mounting holes and supported on the upper end surface of the cabin frame (1). The plurality of first connecting members (7) are all connected between the first mounting portion (4) or the second mounting portion (5) and the positioning plate (6).

4. The fixing device of a wind turbine generator set according to claim 3, characterized in that: The connecting assembly also includes a plurality of first support frames (9), a plurality of second connecting members (8) and a base (11), wherein the plurality of first support frames (9) are all arranged above the mounting hole, and the plurality of first support frames (9) are all supported on the upper end surface of the cabin frame (1), the base (11) is arranged below the mounting hole, the plurality of first support frames (9) are all connected to the base (11), and the plurality of second connecting members (8) are connected between the positioning plate (6) and the base (11).

5. The fixing device of a wind turbine generator set according to claim 4, characterized in that: The connecting assembly further comprises a plurality of second support frames (10), wherein the plurality of second support frames (10) are all connected to the base (11) and are located below the mounting hole, and the plurality of second support frames (10) are all in contact with the lower end surface of the cabin frame (1).

6. The fixing device of a wind turbine generator set according to claim 4, characterized in that: The positioning plate (6) is provided with a plurality of limiting grooves, and the plurality of limiting grooves are provided in a one-to-one correspondence with the plurality of first support frames (9), and the first support frames (9) are located in the limiting grooves.

7. The fixing device of a wind turbine generator set according to claim 3, characterized in that: The first connecting member (7) comprises a lifting rod (71) and a fixing rod (72), wherein the fixing rod (72) is connected to the positioning plate (6), one end of the lifting rod (71) is threadedly connected to the fixing rod (72), and the other end of the lifting rod (71) passes through the first mounting portion (4) or the second mounting portion (5) and is threadedly connected to a nut.

8. The fixing device of a wind turbine generator set according to claim 2, characterized in that: The crimping member (3) includes a first crimping seat (31) and a second crimping seat (32), wherein the first crimping seat (31) is sleeved on the outer peripheral surface of the second crimping seat (32), and the second crimping seat (32) is in contact with the outer peripheral surface of the main shaft (2), and the first mounting portion (4) and the second mounting portion (5) are respectively protruded from both ends of the first crimping seat (31).

9. The fixing device of a wind turbine generator set according to claim 8, characterized in that: The second pressing seat (32) is made of brass material.

10. The fixing device of a wind turbine generator set according to claim 8, characterized in that: The first pressing seat (31) and the second pressing seat (32) are both semicircular arc-shaped.

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