CN215256594U

CN215256594U - Tower and wind generating set

Info

Publication number: CN215256594U
Application number: CN202120858715.6U
Authority: CN
Inventors: 金鑫; 刘金磊
Original assignee: Zhangjiakou Dajin Wind Power Equipment Co ltd
Current assignee: Zhangjiakou Dajin Wind Power Equipment Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-12-21
Anticipated expiration: 2031-04-25

Abstract

The tower comprises a tower cylinder section, a bolt assembly and an anti-loosening plate, wherein an end flange is arranged at the end part of the tower cylinder section, and a fastener mounting hole is formed in the end flange; bolt assembly sets up in the fastener mounting hole for it is adjacent to be used for connecting the tower section of thick bamboo section, bolt assembly include the bolt and with the nut that the bolt matches, the locking plate can overlap and locate the periphery of nut and relative the tip flange is fixed, the pylon that this disclosure provided can include the locking plate, and this locking plate can overlap and establish the periphery at the nut, and it is spacing through carrying out circumference to the locking plate, can prevent that bolt assembly from becoming flexible.

Description

Tower and wind generating set

Technical Field

The disclosure belongs to the technical field of wind power generation, and particularly relates to a tower and a wind generating set with the same.

Background

The tower is one of important components of a wind generating set, and generally comprises a plurality of tower cylinder sections which are arranged on top of each other, and adjacent tower cylinder sections are connected through fasteners.

In the operation process of the wind generating set, the tower generates vibration due to bearing complex load, so that bolts are loosened, the fasteners are required to be maintained frequently, and the operation and maintenance cost is increased. If the maintenance is not timely, the wind generating set has potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The main purpose of this disclosure is to provide a tower, in order to improve the reliability of tower, reduce the operation and maintenance cost.

In view of the above purpose, the present disclosure provides the following technical solutions:

in one aspect of the present disclosure, a tower frame is provided, which includes a tower tube section, a bolt assembly and an anti-loose plate, wherein an end flange is disposed at an end of the tower tube section, and a fastener mounting hole is disposed on the end flange; the bolt assembly is arranged in the fastener mounting hole and used for connecting adjacent tower barrel sections, the bolt assembly comprises a bolt and a nut matched with the bolt, and the anti-loosening plate can be sleeved on the periphery of the nut and is opposite to the end flange. So set up, locate the nut through the locking plate cover and make the locking plate fixed for the tip flange to can avoid bolt assembly to take place not hard up.

In an exemplary embodiment of the present disclosure, the number of the anti-loose plates is at least two, and adjacent anti-loose plates are at least partially overlapped and fixedly connected.

Specifically, the looseness prevention plate comprises a body and a tail portion protruding outward from the body and extending in a radial direction of the bolt, and the body is provided with a looseness prevention hole matched with the nut.

Furthermore, be provided with first pinhole on the locking plate, be provided with on the end flange with the second pinhole that first pinhole matches, the pylon still includes the backstop round pin, the backstop round pin inserts simultaneously first pinhole with the second pinhole.

In another exemplary embodiment of the present disclosure, a limiting groove is provided at an outer circumference of the fastener installation hole of the end flange, and a lower portion of the anti-loose plate is received in the limiting groove.

Further, the end flange is a T-shaped flange or an L-shaped flange.

In particular, the upper portion of the anti-loosening plate protrudes from the surface of the end flange.

Optionally, the tower further comprises a seal covering a seam between the anti-loosening plate and the end flange.

In another aspect of the present disclosure, there is provided a wind park comprising a tower as described above.

The tower and the wind generating set provided by the disclosure at least have the following beneficial effects: the utility model provides a pylon can include the locking plate, and this locking plate can overlap in the periphery of nut, and is spacing through carrying out circumference to the locking plate, can prevent that bolt assembly is not hard up.

Drawings

The above and/or other objects and advantages of the present disclosure will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a block diagram of a tower provided by an exemplary embodiment of the present disclosure.

Fig. 2 is a partially enlarged view of a portion I of fig. 1.

Fig. 3 is a top view of an anti-loosening plate on an end flange provided by the exemplary embodiment of fig. 1.

Fig. 4 is a sectional view a-a in fig. 3.

Fig. 5 is a top view of an anti-loosening plate on an end flange provided by another exemplary embodiment of fig. 1.

Fig. 6 is a sectional view taken along line B-B in fig. 5.

Description of reference numerals:

10. a tower; 11. A tower section;

12. an end flange; 14. A bolt assembly;

15. an anti-loosening plate; 16. A stop pin;

110. an upper tower cylinder section; 111. A bottom flange;

120. a lower tower section; 121. A top flange;

130. a tower door; 141. A bolt;

142. a nut; 143. A lock washer;

151. a body; 152. A tail portion;

153. a first pin hole.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the aspects of the present disclosure are limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

In one aspect of the present disclosure, a wind turbine generator system is provided, which includes a tower foundation and a tower 10, wherein the tower 10 includes one or at least two tower segments 11, and the tower segments 11 are connected to the tower foundation and adjacent tower segments 11 by bolt assemblies 14.

By way of example, fig. 1 shows adjacent tower sections 11 connected by a bolt assembly 14, and fig. 2 shows a close-up view of the structure in circle I of fig. 1. The tower section 11 comprises an upper tower section 110 and a lower tower section 120 which are stacked up and down, the upper tower section 110 and the lower tower section 120 are connected through an end flange 12, the end flange 12 comprises a bottom end flange 111 of the upper tower section 110 and a top end flange 121 of the lower tower section 120, a fastener mounting hole is formed in the end flange 12, a bolt 141 of a bolt assembly 14 can be inserted into the fastener mounting hole, a nut 142 of the bolt assembly 14 can be arranged on the bolt 141 to connect adjacent tower sections 11 together through the bolt assembly 14, or connect the tower sections 11 on a tower foundation.

The lower tower section 120 provided by the present disclosure may be a tower section disposed on the top of a tower foundation, and the lower tower section 120 is provided with a tower door 130.

During operation of the wind turbine generator system, the nut 142 is likely to vibrate relative to the bolt 141 due to vibration, so that the bolt assembly 14 is loosened. In order to prevent the bolt assembly 14 from loosening, the tower 10 may further include a loosening prevention plate 15, the loosening prevention plate 15 may be fitted around the outer circumference of the nut 142 and fixed to the end flange 12, and the circumferential rotation of the nut 142 may be prevented by restricting the circumferential rotation of the loosening prevention plate 15, so that the bolt assembly 14 may be prevented from loosening.

Fig. 3 is a plan view of an anti-loose plate 15 provided in an exemplary embodiment of the present disclosure, which is disposed on an end flange 12, and fig. 4 is a front view of the anti-loose plate 15 and the end flange 12 of fig. 3. Referring to fig. 3 and 4, the anti-loose plate 15 may include a body 151 and a tail portion 152 protruding outward from the body 151 and extending in a radial direction of the bolt 141, and the body 151 is provided with an anti-loose hole matching the nut 142.

In this embodiment, the tail portions 152 of the anti-loose plates 15 of the adjacent bolts 141 may be at least partially overlapped and fixedly connected to each other to form a whole, so that the nut 142 may be prevented from rotating circumferentially. In this embodiment, the anti-loosening plate 15 may be formed in a tadpole shape, the outer edge of the body 151 may be circular, the tail portion 152 may be substantially rectangular and protrude outward from the outer peripheral edge of the body 151, and the tail portions 152 of the adjacent bolts 141 may be partially overlapped and fixed together.

Further, the tail portion 152 may have a polygonal shape or an elliptical shape, and the looseness prevention plate 15 may have a circular shape.

Further, the anti-loose plate 15 can be fixed on the end flange 12 by other means, in this embodiment, the tail portion 152 is provided with a first pin hole 153 (as shown in fig. 5), the end flange 12 is provided with a second pin hole matching with the first pin hole 153, the tower 10 can further include a stop pin 16, and in the case that the stop pin 16 is inserted into the first pin hole 153 and the second pin hole at the same time, the anti-loose plate 15 can be prevented from rotating circumferentially relative to the end flange 12, so that the bolt assembly 14 can be prevented from loosening.

In another exemplary embodiment of the present disclosure, the locking plate 15 may also be locked by a locking groove on the end flange 12, and in particular, a locking groove may be provided at the periphery of the fastener mounting hole, and in the case where the locking plate 15 is provided above the end flange 12, a lower portion of the locking plate 15 may be received in the locking groove, and in order to prevent the locking plate 15 from rotating in the locking groove, the locking plate 15 may be provided in a non-circular shape, and the shape of the locking groove matches the shape of the locking plate 15.

To facilitate removal, the upper portion of the anti-loosening plate 15 may protrude from the surface of the end flange 12, and the protruding portion may be easily grasped by hand or held by a tool, thereby facilitating removal of the anti-loosening plate 15 from the end flange 12.

As shown in fig. 6, the bolt assembly 14 may further include a locking washer 143, the locking washer 143 may be disposed between the nut 142 and the bottom flange 111, a diameter of the locking washer 143 may be greater than an outer diameter of the nut 142, a thickness of the locking plate 15 may be greater than the thickness of the locking washer 143, and a locking hole of the locking plate 15 may be a stepped hole, and an upper portion of the stepped hole may be sleeved on an outer periphery of the nut 142.

So, can carry out circumference spacing through spacing recess or backstop round pin 16 to locking plate 15, and then establish on nut 142 through locking plate 15 cover, can carry out circumference spacing to nut 142, and then can prevent that bolt assembly 14 is not hard up.

To further increase the service life of the tower 10, the tower 10 may further include a seal that may cover the joint between the anti-loose plate 15 and the end flange 12 to prevent rain water from entering the joint and causing corrosion of the end flange 12, which may increase the service life of the end flange 12.

By way of example, the end flange 12 provided by the present disclosure may be a T-shaped flange, or an L-shaped flange, but is not so limited.

The tower 10 provided by the present disclosure may include the anti-loosening plate 15, the anti-loosening plate 15 may be sleeved on the periphery of the nut 142, and the bolt assembly 14 may be prevented from loosening by circumferentially limiting the anti-loosening plate 15. The present disclosure provides for an anti-loosening plate 15 that may also be disposed on the bolt assembly between the tower foundation and the tower segments.

In the description of the present disclosure, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the disclosure, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the disclosure.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, "a plurality" means two or more unless otherwise specified.

In the description of the present disclosure, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

The described features, structures, or characteristics of the disclosure may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Claims

1. A tower, characterized in that it comprises:

the tower cylinder section (11), the end part of the tower cylinder section (11) is provided with an end part flange (12), and the end part flange (12) is provided with a fastener mounting hole;

a bolt assembly (14) disposed in the fastener mounting hole for connecting adjacent tower sections (11), the bolt assembly (14) including a bolt (141) and a nut (142) mating with the bolt (141),

the anti-loosening plate (15) can be sleeved on the periphery of the nut (142) and is fixed relative to the end flange (12).

2. A tower as claimed in claim 1, characterised in that said plates (15) are at least two, adjacent plates (15) being at least partly overlapping and fixedly connected.

3. A tower as claimed in claim 2, wherein said anti-loosening plate (15) comprises a body (151) and a tail (152) extending from said body (151) in a radial direction of said bolt (141), said body (151) having a loosening-preventing hole matching said nut (142).

4. The tower according to claim 1, wherein a first pin hole (153) is provided on the anti-loosening plate (15), a second pin hole matching the first pin hole (153) is provided on the end flange (12), and the tower further comprises a stop pin (16), wherein the stop pin (16) is inserted into the first pin hole (153) and the second pin hole simultaneously.

5. A tower as claimed in any one of claims 1 to 4, characterised in that the periphery of the fastener mounting hole of the end flange (12) is provided with a limiting recess in which the lower part of the anti-loosening plate (15) is received.

6. A tower as claimed in claim 5, characterised in that said end flange (12) is a T-flange or an L-flange.

7. A tower as claimed in claim 5, characterised in that the upper part of the anti-loosening plate (15) protrudes over the surface of the end flange (12).

8. A tower as claimed in claim 5, characterised in that said tower (10) further comprises a seal covering the joint between said anti-loose plate (15) and said end flange (12).

9. A wind park according to any of claims 1-8, wherein the wind park comprises a tower according to any of claims 1-8.