Flange connecting structure of wind power generation tower drum

Abstract

The utility model discloses a wind power generation tower drum flange connecting structure, which belongs to the technical field of flange connecting structures, and comprises a first tower drum body, the top of the first tower drum body is fixedly connected with a flange plate, the top of the flange plate is buckled with a flange cover, and the top of the flange cover is fixedly connected with a second tower drum body. Four fixing plates are fixedly connected to the outer side of the flange cover, and fixing rods are fixedly connected to the bottoms of the four fixing plates. Through the combined action of the fixing plate, the fixing rod, the positioning plate and the through hole, the positioning effect can be achieved when the flange plate and the flange cover are installed, the installation holes of the flange plate and the flange cover quickly correspond to each other, studs can be conveniently inserted into the installation holes for connection and fixation, and the installation efficiency is improved; rainwater is effectively prevented from entering the contact position of the flange plate and the flange cover, the rainwater corrosion phenomenon is effectively avoided, and the service life of the flange cover is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flange connection structures, and more specifically, to a flange connection structure of a wind power tower. Background Art

[0002] Wind energy is a kind of usable energy provided to humans by the work done by air flow. It is a renewable energy source. The kinetic energy of air flow is called wind energy. The higher the air flow rate, the greater the kinetic energy. People can use windmills to convert the kinetic energy of wind into rotational motion to drive generators to generate electricity. Wind turbine towers are the tower poles of wind power generation. They mainly play a supporting role in wind turbine generator sets and absorb the vibration of the set. When the wind turbine towers are connected, flange mechanisms are required for connection.

[0003] Currently, multiple studs are used for multi-point threaded fixation between two flanges, and no positioning structure is designed. As a result, during installation, it is necessary to use a crane to lift the tower and gradually rotate it so that the mounting holes correspond to each other before installation can be carried out, which reduces the installation efficiency. In addition, rainwater can easily penetrate between the two flanges, causing rust and reducing the service life of the flanges. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a flange connection structure for a wind power tower, which has the characteristics of a positioning structure and anti-rainwater rust.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides a wind power tower flange connection structure, including a first tower body, the top of the first tower body is fixedly connected with a flange plate, the top of the flange plate is buckled with a flange cover, the top of the flange cover is fixedly connected with a second tower body, the outer side of the flange cover is fixedly connected with four fixing plates, the bottoms of the four fixing plates are fixedly connected with fixing rods, the outer side of the first tower body is fixedly connected with four positioning plates, the four positioning plates are each provided with a through hole, one end of the four fixing rods are respectively inserted into the four through holes, a plurality of mounting holes are each provided on the flange plate and the flange cover, two of the mounting holes form a group, studs are inserted into the plurality of groups of mounting holes, and nuts are threadedly connected to the plurality of studs.

[0008] When a wind power tower flange connection structure of the present technical solution is used, the fixed plate, the fixed rod, the positioning plate and the through hole work together to play a positioning role when the flange and the flange cover are installed, so that their mounting holes can quickly correspond to each other, and it is convenient to insert studs for connection and fixation, thereby improving the installation efficiency. Through the arrangement of the flange cover and the flange, the flange cover is covered on the outside of the flange, effectively preventing rainwater from entering the contact position between the flange and the flange cover, effectively avoiding the occurrence of rainwater rust, and improving its service life.

[0009] Furthermore, the four positioning plates are all located below the flange.

[0010] Furthermore, a limiting ring is fixedly connected to the top of the flange, and the outer side of the limiting ring overlaps the inner wall of the flange cover.

[0011] Furthermore, a plurality of the studs are sleeved with rubber ring pads, and the bottoms of the plurality of the rubber ring pads are overlapped with the top of the flange cover.

[0012] Furthermore, the outer side of the first tower body and the outer side of the second tower body are sleeved with a same rubber sleeve.

[0013] (3) Beneficial effects

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. Through the joint action of the fixing plate, fixing rod, positioning plate and through hole, the flange and flange cover can be positioned during installation, so that the mounting holes can quickly correspond to each other, and the studs can be inserted for connection and fixing, which improves the installation efficiency. Through the setting of the flange cover and the flange, the flange cover is covered on the outside of the flange, which effectively prevents rainwater from entering the contact position between the flange and the flange cover, effectively avoids the occurrence of rainwater corrosion, and prolongs its service life;

[0016] 2. The setting of the limit ring can pre-position the installed flange cover, and the setting of the rubber sleeve can further improve the rainproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for describing the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 for Figure 1 Expand the schematic diagram of the rubber sleeve structure;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure from the front.

[0021] The symbols in the accompanying drawings are:

[0022] 1. First tower body; 2. Flange; 3. Flange cover; 4. Second tower body; 5. Limit ring; 6. Fixing plate; 7. Fixing rod; 8. Positioning plate; 9. Through hole; 10. Mounting hole; 11. Stud; 12. Rubber ring gasket; 13. Nut; 14. Rubber sleeve. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the technical scheme in the specific implementation mode of the utility model is clearly and completely described below to further illustrate the utility model. Obviously, the specific implementation mode described is only a part of the implementation mode of the utility model, rather than all styles.

[0024] Example:

[0025] The following is combined with Figure 1-3 The utility model is described in further detail.

[0026] See also Figure 1-3 The utility model provides a technical solution: a flange connection structure of a wind power tower, comprising a first tower body 1, a flange 2 is fixedly connected to the top of the first tower body 1, a flange cover 3 is buckled on the top of the flange 2, and a second tower body 4 is fixedly connected to the top of the flange cover 3. By setting the flange cover 3 and the flange 2, the flange cover 3 is covered on the outside of the flange 2, effectively preventing rainwater from entering the contact position between the flange 2 and the flange cover 3, effectively avoiding the occurrence of rainwater rust, and improving its service life. Four fixing plates 6 are fixedly connected to the outside of the flange cover 3, and the bottoms of the four fixing plates 6 are fixedly connected to fixing rods 7. Four positioning plates 8 are fixedly connected to the outer side of the first tower body 1, and through holes 9 are provided on the four positioning plates 8. One ends of four fixing rods 7 are respectively inserted into the four through holes 9. Through the joint action of the fixing plates 6, fixing rods 7, positioning plates 8 and through holes 9, the flange 2 and the flange cover 3 can be positioned when they are installed, so that their mounting holes 10 can quickly correspond to each other, and it is convenient to insert the studs 11 for connection and fixation, thereby improving the installation efficiency. Multiple mounting holes 10 are provided on the flange 2 and the flange cover 3, and two mounting holes 10 form a group. Studs 11 are inserted in multiple groups of mounting holes 10, and nuts 13 are threadedly connected to multiple studs 11.

[0027] Specifically, the four positioning plates 8 are all located below the flange 2, the top of the flange 2 is fixedly connected to the limiting ring 5, the outer side of the limiting ring 5 overlaps with the inner wall of the flange cover 3, multiple studs 11 are sleeved with rubber ring pads 12, the bottoms of multiple rubber ring pads 12 are overlapped with the top of the flange cover 3, and the same rubber sleeve 14 is sleeved on the outer side of the first tower body 1 and the outer side of the second tower body 4.

[0028] By adopting the above technical solution, the setting of the limiting ring 5 can play a role in pre-positioning the installed flange cover 3, and the setting of the rubber sleeve 14 can further improve the rainproof effect.

[0029] The working principle of the utility model is as follows: when in use, the rubber sleeve 14 is sleeved on the second tower body 4, the second tower body 4 is hoisted by a crane, so that its flange cover 3 falls corresponding to the flange plate 2, the second tower body 4 is rotated to make its fixing rod 7 correspond to the through hole 9, the fixing rod 7 is inserted into the through hole 9, the limiting ring 5 is inserted into the flange cover 3, the flange cover 3 is buckled on the flange plate 2, the mounting holes 10 correspond to each other, the studs 11 are inserted into the mounting holes 10, the bottom of the rubber ring gasket 12 is overlapped with the top of the flange cover 3, the studs 11 are fixed by the nuts 13, thereby completing the connection and fixation of the flange plate 2 and the flange cover 3, and the rubber sleeve 14 is turned down to be sleeved on the outside of the first tower body 1 and cover the outside of the flange plate 2 and the flange cover 3.

[0030] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A wind power tower flange connection structure, comprising a first tower body (1), characterized in that: The top of the first tower body (1) is fixedly connected to a flange (2), the top of the flange (2) is buckled with a flange cover (3), the top of the flange cover (3) is fixedly connected to a second tower body (4), the outer side of the flange cover (3) is fixedly connected to four fixing plates (6), the bottoms of the four fixing plates (6) are fixedly connected to fixing rods (7), the outer side of the first tower body (1) is fixedly connected to four positioning plates (8), the four positioning plates (8) are each provided with a through hole (9), one end of the four fixing rods (7) is respectively inserted into the four through holes (9), the flange (2) and the flange cover (3) are each provided with a plurality of mounting holes (10), two of the mounting holes (10) form a group, studs (11) are inserted into the plurality of groups of mounting holes (10), and nuts (13) are threadedly connected to the plurality of studs (11).

2. A wind power tower flange connection structure according to claim 1, characterized in that: The four positioning plates (8) are all located below the flange (2).

3. A wind power tower flange connection structure according to claim 1, characterized in that: The top of the flange (2) is fixedly connected to a limiting ring (5), and the outer side of the limiting ring (5) overlaps the inner wall of the flange cover (3).

4. A wind power tower flange connection structure according to claim 1, characterized in that: A rubber ring gasket (12) is sleeved on each of the plurality of studs (11), and the bottoms of each of the rubber ring gaskets (12) overlap the top of the flange cover (3).

5. The flange connection structure of a wind power tower according to claim 1, characterized in that: The outer side of the first tower body (1) and the outer side of the second tower body (4) are sleeved with a same rubber sleeve (14).

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