Power supply transformation and installation device in hub of wind turbine generator

Abstract

The utility model relates to the technical field of power source transformation and installation devices, in particular to a wind turbine generator hub internal power source transformation and installation device. According to the technical scheme, the wheel hub comprises a wheel hub body, a mounting groove is formed in the wheel hub body, a fixing cylinder located on the outer side of the mounting groove is fixedly connected into the wheel hub body, and the wheel hub further comprises a locking piece arranged at the bottom end of the interior of the fixing cylinder; the piston pressing plate is arranged in the fixing cylinder in a sliding mode, and the locking piece is driven through the piston pressing plate; the mounting frame is clamped in the mounting groove, and a through groove located in the inner side of the locking piece is formed in the side wall of the mounting frame. Compared with a traditional installation structure, the power supply installation structure has the advantages that the number of installed parts is reduced, the parts are prevented from being lost in the later period, the power supply can be prevented from loosening in the hub, the stabilization effect is good, and the safety coefficient is high.

Description

Technical Field

[0001] This application relates to the technical field of power supply transformation and installation devices, and particularly to a power supply transformation and installation device inside the hub of a wind turbine. Background Art

[0002] The backup power supply of the wind turbine mainly realizes the function of smoothly retracting the blades after the power grid power failure to prevent safety accidents such as the unit running away. As the most important protection unit of the unit after the power grid power failure, the reliability of the backup power supply is an important link to ensure the safe operation of the unit. The existing backup power supply itself has low reliability, and since the existing backup power supply supplies power to the hub pitch system through a slip ring, it increases the operation risk of the unit, and the operation safety of the unit cannot be well guaranteed. In order to overcome the above problems, it is necessary to add a reserve power supply inside the hub to ensure the operation safety of the unit. As a rotating part, the newly added power supply in the hub needs to use a power supply installation structure.

[0003] The traditional power supply installation structure is fixed by bolts. Since the hub is in a rotating state, if the traditional method is used for installation, loosening or loss of components is likely to occur, and the stability cannot be guaranteed. In view of this, this application proposes a power supply transformation and installation device inside the hub of a wind turbine. Utility Model Content

[0004] The purpose of this application is to address the technical problems pointed out in the background art and propose a power supply transformation and installation device inside the hub of a wind turbine.

[0005] The technical solution of this application: A power supply transformation and installation device inside the hub of a wind turbine, including a hub body, an installation groove is opened inside the hub body, a fixed cylinder located outside the installation groove is fixedly connected inside the hub body, and further includes:

[0006] A locking member arranged at the bottom end inside the fixed cylinder;

[0007] A piston pressing plate slidably arranged inside the fixed cylinder, and the locking member is driven by the piston pressing plate;

[0008] An installation frame clamped inside the installation groove, and a through groove located inside the locking member is opened on the side wall of the installation frame.

[0009] Preferably, the fixed cylinder is in a shape of a rectangle with a hole in the middle, and multiple groups of locking members are arranged;

[0010] The locking member includes a rectangular cylinder fixedly connected to the side wall of the fixed cylinder close to the installation frame, the rectangular cylinder is communicated with the fixed cylinder, the through groove and the locking member are in the same vertical plane, a lock plate is slidably arranged inside the rectangular cylinder, and the lock plate can penetrate through the through groove and insert into the fixed groove on the side wall of the power supply housing inside the installation frame.

[0011] Preferably, the thickness of the piston pressure plate is greater than the thickness of the rectangular cylinder, and the piston pressure plate is a circular shape.

[0012] Preferably, a support plate is fixedly connected to the bottom end of the installation frame, and a plurality of heat dissipation holes are opened on the side wall of the installation frame;

[0013] When the power supply is placed in the installation frame, the fixing grooves on the two side walls of the power supply are aligned with the through grooves on the two sides respectively.

[0014] Preferably, a pair of limiting members are provided at the upper end of the fixing cylinder for positioning the piston pressure plate.

[0015] Preferably, the limiting member comprises a fixing block fixedly connected to the outer end of the fixing cylinder, a bolt is threadedly connected through the fixing block, and an end of the bolt close to the piston pressure plate is fixedly connected to a resistance block.

[0016] Preferably, the outer diameter of the abutment block is larger than the outer diameter of the bolt, and a rubber pad is fixedly connected to one end of the abutment block close to the piston pressure plate.

[0017] Compared with the prior art, this application has the following beneficial technical effects:

[0018] The present application arranges a fixing cylinder on the outside of the installation groove and a locking piece on the inside of the installation frame. By pressing the piston pressure plate downward, the locking plate inside the rectangular cylinder can be inserted into the fixing groove of the side wall of the power supply through the through groove under the action of air pressure, thereby quickly completing the installation and fixing of the power supply.

[0019] By arranging a limiter at the upper end of the fixed cylinder, the piston pressure plate can be positioned to prevent the piston pressure plate from shifting due to external factors.

[0020] Compared with the traditional installation structure, the design of the present application reduces the number of installed parts, avoids the loss of parts at a later stage, and can prevent the power supply from loosening in the wheel hub, thereby achieving good stabilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of a wind turbine hub internal power source modification and installation device;

[0022] Figure 2 is a front cross-sectional view of the mounting frame in the present application;

[0023] Figure 3 It is a schematic diagram of the structure of the limiter in this application;

[0024] Figure 4 yes Figure 2 Enlarged structural diagram at A in the middle.

[0025] Reference numerals: 1, hub body; 2, fixing cylinder;

[0026] 3. Limit member; 31. Fixed block; 32. Bolt; 33. Contact block;

[0027] 4. Installation frame; 5. Piston pressing plate;

[0028] 6. Locking member; 61. Rectangular cylinder; 62. Locking plate;

[0029] 7. Through groove;

[0030] 8. Heat dissipation holes; 9. Support plate; 10. Installation groove. Specific embodiments

[0031] The technical solutions of the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Generally, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application.

[0033] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0034] In the description of the present application, 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 accompanying drawings, and is only for the convenience of describing the present invention 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 cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it 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 elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0036] Embodiment

[0037] As Figures 1-4As shown, the present application proposes a wind turbine hub power source modification and installation device, comprising a hub body 1, a mounting groove 10 is provided in the hub body 1, a fixing cylinder 2 located outside the mounting groove 10 is fixedly connected in the hub body 1, and further comprising:

[0038] The locking member 6 disposed at the bottom end of the fixing tube 2 is used to fix the installation frame 4 and the power supply; the fixing tube 2 is circular, and the locking member 6 is provided in two groups.

[0039] The piston pressure plate 5 is slidably arranged in the fixed cylinder 2, and the locking member 6 is driven by the piston pressure plate 5. The operation is simple, the number of detachable and fixed parts is reduced, and loosening or loss of parts is avoided.

[0040] The installation frame 4 is clamped in the installation groove 10 , and a through groove 7 located inside the locking member 6 is formed on the side wall of the installation frame 4 .

[0041] Specifically, the locking member 6 includes a rectangular tube 61 fixedly connected to a side wall of the fixed tube 2 close to the mounting frame 4. The rectangular tube 61 is connected to the fixed tube 2. One end of the rectangular tube 61 is in sliding contact with the mounting frame 4, so that the mounting frame 4 can be smoothly installed or removed. After the mounting frame 4 is fitted and installed in the mounting groove 10, the through groove 7 and the locking member 6 are located in the same vertical plane. A locking plate 62 is slidably arranged in the rectangular tube 61. The locking plate 62 can pass through the through groove 7 and be inserted into the fixed groove of the side wall of the power supply shell in the mounting frame 4.

[0042] It should be noted that the thickness of the piston pressing plate 5 is greater than the thickness of the rectangular tube 61 , and the piston pressing plate 5 is a circular shape to prevent gas leakage inside the rectangular tube 61 .

[0043] Furthermore, a support plate 9 is fixedly connected to the bottom of the installation frame 4, and a plurality of heat dissipation holes 8 are provided on the side walls of the installation frame 4 to keep the newly added power supply in a normal heat dissipation state. When the power supply is placed in the installation frame 4, the fixing grooves on the two side walls of the power supply housing are respectively aligned with the through grooves 7 on both sides, which is convenient for the next step of fixing.

[0044] A pair of stoppers 3 are provided at the upper end of the fixed cylinder 2, which are used to position the piston pressure plate 5 and prevent the piston pressure plate 5 from shifting in the fixed cylinder 2. The stoppers 3 include a fixed block 31 fixedly connected to the outer end of the fixed cylinder 2, a bolt 32 is threadedly connected through the fixed block 31, and a resisting block 33 is fixedly connected to one end of the bolt 32 close to the piston pressure plate 5. The outer diameter of the resisting block 33 is larger than the outer diameter of the bolt 32, which limits the bolt 32 and prevents the bolt 32 from detaching from the fixed block 31, and a rubber pad is fixedly connected to one end of the resisting block 33 close to the piston pressure plate 5.

[0045] The working principle of this embodiment is as follows: First, the newly added power supply is installed in the installation frame 4, and then the installation frame 4 is inserted into the installation groove 10, and the installation frame 4 is completely inserted into the installation groove 10. Next, the piston pressing plate 5 is pressed inward against the fixed cylinder 2, so that the gas in the fixed cylinder 2 squeezes the locking plates 62 inside the two rectangular cylinders 61 to move closer to the installation frame 4 and penetrate through the corresponding through grooves 7 and insert into the fixing grooves on the side wall of the power supply, completing the fixation of the power supply. The specific number of the locking members 6 here can also be 4 groups or 6 groups, which can be specifically set according to requirements. After the locking plate 62 is inserted into the fixing groove on the side wall of the power supply housing, the bolt 32 is rotated to make the bolt 32 move in the direction of the piston pressing plate 5, so that the abutting block 33 abuts against the piston pressing plate 5 to position the piston pressing plate 5, thereby ensuring the stability of the piston pressing plate 5. An operating rod (not shown in the figure) is provided on the outer surface of the piston pressing plate 5 for easy operation. A wind power generation unit is provided inside the hub body 1. When the backup power supply of the original unit is in good condition, the newly added backup power supply is not put into use, and the newly added power supply is always in a state of separate charging and standby.

[0046] The above specific embodiments are only preferred embodiments of the present application. Based on the technical solution of the present application and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments; the above specific embodiments are only explanations of the present application and are not limitations to the present application.

Claims

1. A wind turbine hub power source modification and installation device, comprising a hub body (1), characterized in that: The hub body (1) is provided with a mounting groove (10), a fixing cylinder (2) located outside the mounting groove (10) is fixedly connected to the hub body (1), and further comprises: A locking member (6) disposed at the bottom end of the fixed cylinder (2); A piston pressure plate (5) is slidably disposed in the fixed cylinder (2), and the locking member (6) is driven by the piston pressure plate (5); A mounting frame (4) is clamped in the mounting groove (10), and a through groove (7) located inside the locking member (6) is formed on a side wall of the mounting frame (4).

2. A wind turbine hub power source modification and installation device according to claim 1, characterized in that: The fixing cylinder (2) is of a circular shape, and the locking members (6) are arranged in multiple groups; The locking member (6) comprises a rectangular tube (61) fixedly connected to a side wall of the fixing tube (2) close to the installation frame (4); the rectangular tube (61) is in communication with the fixing tube (2); the through slot (7) and the locking member (6) are located on the same vertical plane; a locking plate (62) is slidably arranged in the rectangular tube (61); the locking plate (62) can penetrate the through slot (7) and be inserted into a fixed slot on the side wall of the power supply housing in the installation frame (4).

3. A wind turbine hub power source modification and installation device according to claim 2, characterized in that: The thickness of the piston pressing plate (5) is greater than the thickness of the rectangular cylinder (61), and the piston pressing plate (5) is a circular shape.

4. A wind turbine hub power source modification and installation device according to claim 3, characterized in that: A support plate (9) is fixedly connected to the bottom end of the installation frame (4), and a plurality of heat dissipation holes (8) are provided on the side wall of the installation frame (4); When the power supply is placed in the installation frame (4), the fixing grooves on the two side walls of the power supply are aligned with the through grooves (7) on the two sides respectively.

5. The wind turbine hub power source modification and installation device according to claim 1, characterized in that: A pair of stoppers (3) are provided at the upper end of the fixed cylinder (2) for positioning the piston pressure plate (5).

6. A wind turbine hub power source modification and installation device according to claim 5, characterized in that: The limiting member (3) comprises a fixing block (31) fixedly connected to the outer end of the fixing cylinder (2), a bolt (32) threadedly penetrates through the fixing block (31), and an end of the bolt (32) close to the piston pressure plate (5) is fixedly connected to a resistance block (33).

7. A wind turbine hub power source modification and installation device according to claim 6, characterized in that: The outer diameter of the abutment block (33) is greater than the outer diameter of the bolt (32), and a rubber pad is fixedly connected to one end of the abutment block (33) close to the piston pressure plate (5).

Images