Flange fixing device of wind power blade

Abstract

The utility model relates to a wind power blade flange fixing device which comprises a flange body, a plurality of annularly-arranged first through holes and a plurality of annularly-arranged second through holes located on the inner sides of the first through holes are formed in the flange body, and a first annular groove and a second annular groove located on the inner side of the first annular groove are formed in the flange body. The first annular groove is used for communicating the first through holes, the second annular groove is used for communicating the second through holes, the first annular groove communicates with the first through holes, the second annular groove communicates with the second through holes, and oil filling holes communicating with the first through holes, the second through holes, the first annular groove and the second annular groove are formed in the side wall of the flange body. By using the first through hole, the second through hole, the first annular groove, the second annular groove, the oil filling hole and the sealing assembly, the interior of the flange can be better lubricated, better anti-abrasion protection on the flange is facilitated, meanwhile, lubricating oil can be better sealed, the lubricating oil can be prevented from overflowing from the interior of the oil filling hole, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation equipment technical field especially a kind of flange fixing device of wind power blade. BACKGROUND

[0002] Wind power generation is a kind of process by using windmill blade rotation to convert wind energy into electrical energy, wind power generation is a project that is conducive to energy conservation and environmental protection, wind power generation needs to use wind power blade in the process, the rotation of wind power blade can provide power for power generation, in order to be able to connect wind power generator blade and shaft, wind power blade flange needs to be used, the use of wind power blade flange can improve the stability between wind power blade and shaft;

[0003] Through retrieval, the Chinese patent with publication number CN213981544U discloses a kind of flange fixing device of wind power blade, including adapter flange and multiple adapter connecting pieces, multiple through holes are provided on the flange face of adapter flange along the circumferential direction, multiple through holes are used to pass bolt and is fixedly connected with bolt sleeve on test platform, annular limiting groove is provided on the flange face of adapter flange along the circumferential direction, the center circle diameter of limiting groove is consistent with the pitch circle diameter formed by multiple bolt holes on wind power blade blade root, one end of each adapter connecting piece is slidably connected in limiting groove and each adapter connecting piece can be respectively corresponding with each bolt hole on wind power blade blade root, limiting groove can limit each adapter connecting piece in axial direction, the other end of each adapter connecting piece is used to be threadedly connected with double-headed bolt connected in wind power blade blade root bolt hole. It can be used for the adapter fixing of wind power blade with different bolt hole numbers of the same model, and the manufacturing cost is saved.

[0004] In the patent, only the adapter fixing of wind power blade with different bolt hole numbers can be facilitated, the internal flange plate cannot be conveniently fully added with lubricating oil, the flange plate is prone to be seriously worn and damaged, which is not conducive to improving the service life of the flange plate, and the oil filling hole cannot be better sealed, which is not conducive to the preservation of lubricating oil. UTILITY MODEL CONTENTS

[0005] In view of the technical problems in the prior art that only the adapter fixing of wind power blade with different bolt hole numbers can be facilitated, the internal flange plate cannot be conveniently fully added with lubricating oil, the flange plate is prone to be seriously worn and damaged, which is not conducive to improving the service life of the flange plate, and the oil filling hole cannot be better sealed, which is not conducive to the preservation of lubricating oil, the utility model provides a kind of flange fixing device of wind power blade.

[0006] The technical scheme adopted by the utility model is as follows: a kind of flange fixing device of wind power blade, comprising:

[0007] The flange body has multiple annular through holes I and multiple annular through holes II located inside the first through holes. The flange body also has an annular groove I and an annular groove II located inside the first annular groove. The annular groove I is used to connect the various first through holes, and the annular groove II is used to connect the various second through holes. The annular groove I is connected to each of the first through holes, and the annular groove II is connected to each of the second through holes. The side wall of the flange body has an oil filling hole that connects to one of the first through holes, one of the second through holes, the annular groove I, and the annular groove II.

[0008] Furthermore, a sealing component is installed inside the filler hole to seal the filler hole.

[0009] Furthermore, the inner sidewall of the filler hole is provided with internal threads, and the sealing assembly includes a bolt and a sealing gasket that pass through the filler hole. The bolt is threadedly connected to the internal threads and a connecting post is fixedly installed at its end. The sealing gasket is provided with a groove that fits around the connecting post.

[0010] Furthermore, a positioning ring is fixedly installed on one side of the flange body.

[0011] Furthermore, a second positioning ring is fixedly installed on the side of the flange body away from the first positioning ring.

[0012] Furthermore, the flange body has multiple mounting holes.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model, through the design of through hole one, through hole two, annular groove one, annular groove two and oil filling hole, can achieve the effect of more fully adding lubricating oil to the inside of the flange, which can greatly improve the lubrication of the flange during use and help reduce flange wear.

[0015] 2. Secondly, through the setting of the sealing component, this utility model can achieve a better and faster sealing effect on the filling hole, which can prevent lubricating oil from overflowing from the inside of the filling hole and is conducive to sealing and blocking the lubricating oil. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0018] Figure 3 This is the utility model Figure 2 A magnified structural diagram of A in the middle;

[0019] Figure 4 It is a partial split structure schematic diagram of the utility model.

[0020] Marked as: 1, flange body;2, through hole one;3, through hole two;4, annular groove one;5, annular groove two;6, oil hole;7, sealing assembly;701, bolt;702, sealing pad;703, connecting column;8, internal thread;9, clamping groove;10, positioning ring one;11, positioning ring two;12, mounting hole. DETAILED DESCRIPTION

[0021] In the description of the utility model, it needs to explain, the orientation or position relation that the term "front", "upper", "lower", "left", "right", "vertical", "horizontal" etc. indicate is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element that is indicated must have a particular orientation, with a particular orientation configuration and operation, therefore can not be understood as the restriction of the utility model.

[0022] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "connection", "connect" should do broad sense understanding, for example, can be fixed connection, can be detachable connection, or integrally connected;It can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements inside.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0023] The following will be combined with the drawings Figures 1-4 Further illustrate the utility model.

[0024] In order to solve the problems in the background art, the present application proposes the following technical scheme: a flange fixing device of wind power blade.

[0025] In the specific technical scheme, including flange body 1;

[0026] As Figures 1-4As shown, the flange body 1 is provided with a plurality of annularly arranged through holes 2 and a plurality of annularly arranged through holes 3 inside the through holes 2. The through holes 2 and the through holes 3 can conveniently reduce the weight of the flange body 1 and improve the gas characteristics. The flange body 1 is provided with an annular groove 4 and an annular groove 5 inside the annular groove 4. The annular groove 4 and the annular groove 5 can conveniently communicate between each through hole 2 and each through hole 3. The annular groove 4 is used for communication between each through hole 2, and the annular groove 5 is used for communication between each through hole 3. The annular groove 4 communicates with each through hole 2, and the annular groove 5 communicates with each through hole 3. The side wall of the flange body 1 is provided with an oil filling hole 6 communicating with one through hole 2, one through hole 3, the annular groove 4 and the annular groove 5. The oil filling hole 6 can conveniently add lubricating oil to the flange body 1.

[0027] When the flange body 1 is installed on both sides of the equipment, the two ends of each through hole 2 and each through hole 3 are sealed by the equipment on both sides of the flange body 1. By injecting lubricating oil into the oil filling hole 6, the lubricating oil can enter the inside of the through hole 2 and the through hole 3 connected thereto through the oil filling hole 6. The continuous injection of lubricating oil can flow along the annular groove 4 and the annular groove 5. The lubricating oil can enter the inside of each through hole 2 and each through hole 3 from the annular groove 4 and the annular groove 5. The lubricating oil can contact the equipment connected with the flange body 1 through each through hole 2 and each through hole 3, can sufficiently lubricate the connection gap between the equipment in contact with the flange body 1 and the flange body 1, and can reduce the wear of the flange body 1.

[0028] As shown in the figure, Figures 1-4 The oil filling hole 6 is provided with a sealing assembly 7. The sealing assembly 7 is used for sealing the oil filling hole 6. The inner side wall of the oil filling hole 6 is provided with an internal thread 8. The internal thread 8 can be conveniently connected with the bolt 701. The sealing assembly 7 comprises a bolt 701 and a sealing gasket 702 arranged inside the oil filling hole 6. The bolt 701 can be connected and fixed with the internal thread 8. The sealing gasket 702 can seal and block the opening of the oil filling hole 6. The bolt 701 is threadedly connected with the internal thread 8 and is fixedly provided with a connecting column 703 at the end. The connecting column 703 can be connected with a clamping groove 9. The sealing gasket 702 is provided with the clamping groove 9 arranged outside the connecting column 703. The clamping groove 9 can drive the sealing gasket 702 to be connected with the connecting column 703.

[0029] By inserting the bolt 701, the sealing gasket 702 and the connecting column 703 into the end of the oil hole 6, by screwing the bolt 701, the relative movement between the bolt 701 and the internal thread 8 occurs, the internal thread 8 is fixed by the flange body 1, the bolt 701 moves to the inside of the oil hole 6 while rotating, the bolt 701 moves through the connecting column 703 and the clamping groove 9 to push the sealing gasket 702, the sealing gasket 702 can be pushed into the oil hole 6, the bolt 701 is fixed between the bolt 701 and the internal thread 8, the bolt 701 can be fixed in the oil hole 6, the oil hole 6 can drive the bolt 701 to be fixed on the flange body 1, and the sealing gasket 702 can be blocked in the oil hole 6 to prevent lubricating oil from flowing out of the oil hole 6.

[0030] As shown in Figure 4 , one side of the flange body 1 is fixedly provided with a positioning ring one 10, and the positioning ring one 10 can conveniently connect and position the flange body 1 and the equipment.

[0031] As shown in Figure 1 , the flange body 1 is fixedly provided with a positioning ring two 11 away from the positioning ring one 10, and the positioning ring two 11 can conveniently limit the flange body 1 installed on the equipment.

[0032] As shown in Figure 1 , a plurality of mounting holes 12 are formed in the flange body 1, and the mounting holes 12 can conveniently install the flange body 1.

[0033] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, and the mechanical parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here, and the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0034] Although the embodiments of the utility model have been shown and described, the scope of the utility model is defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A flange fixing device for a wind turbine blade, characterized in that The utility model relates to a flange body (1) is characterized by comprising: Flange body (1), a plurality of annularly arranged through holes one (2) and a plurality of annularly arranged through holes two (3) in the through hole one (2) are set up on the flange body (1), annular groove one (4) and annular groove two (5) in the annular groove one (4) are set up in the flange body (1), the annular groove one (4) is used to communicate between each through hole one (2), the annular groove two (5) is used to communicate between each through hole two (3), the annular groove one (4) communicates with each through hole one (2), the annular groove two (5) communicates with each through hole two (3), the side wall of flange body (1) is set up with one through hole one (2), one through hole two (3), annular groove one (4) and annular groove two (5) communication oil hole (6).

2. A flange fixing device for a wind turbine blade according to claim 1, characterized in that The oil hole (6) is equipped with a sealing assembly (7), and the sealing assembly (7) is used for sealing the oil hole (6).

3. A flange fixing device for a wind turbine blade according to claim 2, characterised in that The inner side wall of the oil hole (6) is provided with an internal thread (8), the sealing assembly (7) includes a bolt (701) and a sealing gasket (702) penetrating in the oil hole (6), the bolt (701) is threadedly connected with the internal thread (8) and is fixedly provided with a connecting column (703) at the end, and the sealing gasket (702) is provided with a clamping groove (9) sleeved outside the connecting column (703).

4. A flange fixing device for a wind turbine blade according to claim 3, characterised in that, One side of the flange body (1) is fixedly provided with a positioning ring one (10).

5. A flange fixing device for a wind turbine blade according to claim 4, characterised in that, The side of the flange body (1) away from the positioning ring one (10) is fixedly provided with a positioning ring two (11).

6. A flange fixing device for a wind turbine blade according to claim 5, characterised in that A plurality of mounting holes (12) are set up on the flange body (1).

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