Reinforcing connection structure of bent plates of tower drum

Abstract

The utility model discloses a reinforced connection structure of tower tube bent plates. Every two adjacent tower tube bent plates are connected in a fastened mode through T-shaped steel. The T-shaped steel is formed by integrally connecting a long reinforcing plate and a long connecting plate, the long reinforcing plate is arranged in the middle of the long connecting plate, and the long reinforcing plate and the long connecting plate are arranged perpendicularly. A plurality of through holes are formed in the positions, on the two sides of the reinforcing long plate, of the connecting long plate of the T-shaped steel, corresponding through holes are formed in the positions, corresponding to the through holes of the connecting long plate, of the side edge of the tower tube bent plate, and first fastening bolts penetrate through the through holes of the connecting long plate and the corresponding through holes of the tower tube bent plate at the same time and then are locked through first nuts. According to the reinforced connection structure, after the two adjacent tower tube bent plates are fixedly connected through the T-shaped steel of a special structure, the reinforced long plate of the T-shaped steel is located at the abutted seam of the two adjacent tower tube bent plates and can be used for bearing assembly stress and playing a role similar to supporting, and the strength of the spliced tower tube body is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine towers, specifically relating to a reinforced connection structure for tower bending plates. Background Technology

[0002] Each tower body of a wind turbine can be assembled from multiple tower bending plates in a circumferential manner. Before this invention, adjacent tower bending plates were generally connected by simple splicing plates. The assembly stress of the tower was usually concentrated on the splicing plates, which directly affected the strength of the tower body. With the development of larger wind turbines, in addition to improving the material strength of the splicing plates, another connection structure is urgently needed to strengthen the assembly strength of the tower bending plates. Utility Model Content

[0003] Based on the content in the background art, this utility model provides another reinforced connection structure for the tower bending plate:

[0004] T-shaped steel is used to fasten the two adjacent tower bending plates together.

[0005] The T-shaped steel is composed of a reinforcing long plate and a connecting long plate connected together. The reinforcing long plate is located in the middle of the connecting long plate and the reinforcing long plate and the connecting long plate are perpendicular to each other.

[0006] The connecting plate of the T-shaped steel has multiple through holes on both sides of the reinforcing plate. The side of the tower bending plate also has corresponding through holes at the corresponding positions of the through holes in the connecting plate. The first fastening bolt passes through the through holes of the connecting plate and the corresponding through holes of the tower bending plate and is then locked by the first nut. Of course, the number of the first fastening bolts is the same as the number of through holes in the connecting plate, and they are set one-to-one.

[0007] After the T-shaped steel is used to fasten the bending plates of two adjacent tower sections together, the reinforcing long plate of the T-shaped steel is located at the joint of the bending plates of the two adjacent tower sections. It can be used to bear the assembly stress and play a role similar to "support" to effectively improve the strength of the assembled tower body.

[0008] Furthermore, the aforementioned reinforced connection structure for the tower bending plate also includes connecting short plates. Two connecting short plates are respectively disposed at both ends of the T-shaped steel. The connecting short plates simultaneously fit with two adjacent tower bending plates. Multiple through holes are opened on the connecting short plates, and the tower bending plates also have corresponding through holes at the corresponding positions of the through holes on the connecting short plates. Second fastening bolts pass through the through holes of the connecting short plates and the corresponding through holes of the tower bending plates and are then locked by second nuts. Of course, the number of second fastening bolts is the same as the number of through holes in the connecting short plates, and they are set one-to-one. The connecting short plates can play an auxiliary role in connecting the T-shaped steel. By first using two connecting short plates to pre-assemble the adjacent tower bending plates at the upper and lower ends to make the butt joint flush, the T-shaped steel can be connected, which can reduce the generation of assembly stress.

[0009] Through the above technical solutions, this utility model has at least the following beneficial effects:

[0010] The reinforced connection structure of the tower bending plate described in this application uses a specially structured T-shaped steel to fasten two adjacent tower bending plates together. The reinforcing long plate of the T-shaped steel is located at the joint of the two adjacent tower bending plates and can be used to bear the assembly stress, playing a role similar to "support" to effectively improve the strength of the assembled tower body. Attached Figure Description

[0011] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of this utility model in a schematic manner. Therefore, they only show the components related to this utility model.

[0012] Figure 1 This is a partial front view of a reinforced connection structure for a tower bending plate as described in an embodiment of this application;

[0013] Figure 2 This is a partial cross-sectional view of a reinforced connection structure for a tower bending plate as described in an embodiment of this application; Detailed Implementation

[0014] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships are for illustrative purposes only and should not be construed as limiting this patent. If terms such as "first" and "second" are used for descriptive purposes only, they should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of the stated features. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0015] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] refer to Figure 1 and Figure 2 The tower bending plate has a reinforced connection structure, in which two adjacent tower bending plates 1 are fastened together by T-shaped steel 2;

[0017] The T-shaped steel 2 is integrally connected by a reinforcing long plate 201 and a connecting long plate 202. The reinforcing long plate 201 is located in the middle of the connecting long plate 202, and the reinforcing long plate 201 and the connecting long plate 202 are arranged perpendicular to each other.

[0018] The connecting plate 202 of the T-shaped steel 2 has multiple through holes on both sides of the reinforcing plate 201. The side of the tower bending plate 1 also has corresponding through holes at the positions corresponding to the through holes in the connecting plate 202. First fastening bolts 11 pass through both the through holes in the connecting plate 202 and the corresponding through holes in the tower bending plate 1, and are then locked by first nuts 12. The number of first fastening bolts 11 is the same as the number of through holes in the connecting plate 202, and they are arranged in a one-to-one correspondence. After fastening two adjacent tower bending plates 1 together using the T-shaped steel 2, [reference needed]. Figure 1 The reinforcing plate 201 of the T-shaped steel 2 is located at the joint of the bending plates 1 of two adjacent tower sections. It can be used to bear the assembly stress and play a role similar to "support" to effectively improve the strength of the assembled tower body.

[0019] The reinforced connection structure of the tower bending plate also includes connecting short plates 3. Two connecting short plates 3 are respectively set at both ends of the T-shaped steel 2. The connecting short plates 3 are simultaneously fitted with two adjacent tower bending plates 1. The connecting short plates 3 have multiple through holes. The tower bending plates 1 also have corresponding through holes at the corresponding positions of the through holes of the connecting short plates 3. Second fastening bolts 21 pass through the through holes of the connecting short plates 3 and the corresponding through holes of the tower bending plates 1 and are then locked by second nuts 22. Of course, the number of second fastening bolts 21 is the same as the number of through holes of the connecting short plates 3, and they are set one-to-one. The connecting short plates 3 can play an auxiliary role in connecting the T-shaped steel 2. The two adjacent tower bending plates 1 are pre-assembled at the top and bottom with two connecting short plates 3 to make the butt joint flush before connecting the T-shaped steel 2, which can reduce the generation of assembly stress.

[0020] The tower body assembled using the aforementioned reinforced connection structure can achieve the same strength while reducing the wall thickness from the original 21mm to 18mm. The weight of the first-layer tower body after the improvement is reduced by approximately 3700kg compared to the weight before the improvement.

[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Based on the present utility model and the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reinforcing connection structure for a tower bending plate, characterized in that: The two adjacent tower bending plates (1) are fastened together by T-shaped steel (2); The T-shaped steel (2) is integrally connected by a reinforcing long plate (201) and a connecting long plate (202). The reinforcing long plate (201) is located in the middle of the connecting long plate (202), and the reinforcing long plate (201) and the connecting long plate (202) are arranged perpendicular to each other. The connecting plate (202) of the T-shaped steel (2) has multiple through holes on both sides of the reinforcing plate (201). The side of the tower bending plate (1) also has corresponding through holes at the corresponding positions of the through holes of the connecting plate (202). The first fastening bolt (11) passes through the through holes of the connecting plate (202) and the corresponding through holes of the tower bending plate (1) and is then locked by the first nut (12).

2. The reinforced connection structure of the tower bending plate according to claim 1, characterized in that: It also includes connecting short plates (3), with two connecting short plates (3) respectively located at both ends of the T-shaped steel (2). The connecting short plates (3) are simultaneously attached to two adjacent tower bending plates (1). Multiple through holes are provided on the connecting short plates (3). The tower bending plates (1) also have corresponding through holes at the corresponding positions of the through holes of the connecting short plates (3). A second fastening bolt (21) passes through the through holes of the connecting short plates (3) and the corresponding through holes of the tower bending plates (1) and is then locked by a second nut (22).

Images