Anti-fatigue split type wind power tower drum

Abstract

The utility model relates to the technical field of wind power towers, and discloses an anti-fatigue split type wind power tower drum which comprises a tower drum section which is cylindrical and comprises at least two tower drum pieces, two side faces of each tower drum piece are respectively provided with a mounting piece, a connecting assembly and a connecting ring, and the mounting pieces and the connecting assemblies are used for fixing the adjacent mounting pieces into a reinforcing piece and the connecting rings are detachably arranged in the tower drum section. According to the utility model, the adjacent mounting pieces are fixed into one reinforcing piece through the connecting assemblies to complete the splicing of a plurality of tower drum pieces, so that the plurality of tower drum pieces can form a columnar structure, the overall structural strength of the tower drum sections is improved through the reinforcing pieces, and then the longitudinal adjacent tower drum sections are connected through the connecting rings; according to the tower drum, the tower drum section is arranged in the positioning groove, protrusions cannot be formed outside the tower drum section, corrosion of rainwater on the outer wall of the tower drum to the tower drum is avoided, the reinforcer can be inserted into the positioning groove, the reinforcer can be limited and reinforced again at the two ends of the reinforcer, and therefore the anti-fatigue performance of the tower drum section is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power towers, in particular to an anti-fatigue segmented wind power tower. Background Art

[0002] A wind turbine tower is a tower pole for wind power generation. It mainly plays a supporting role in a wind turbine generator set and absorbs the vibration of the set. In some prefabricated wind turbine tower structures that do not use prestressed technology, the tower section is divided into several pieces of matching sizes. During construction, several pieces can be assembled into a tower section, and several tower sections can be assembled into a tower. The tower section segments can further reduce the size of the assembled components, making it easier to prefabricate, transport and assemble.

[0003] In the Chinese utility model with publication number CN217841896U, a segmented, close-fitting, fatigue-resistant wind turbine tower is disclosed. It uses inner connecting wing plates and outer connecting wing plates to complete the connection of adjacent longitudinal tower sections, solving the eccentric force problems and the loosening and falling problems of ordinary high-strength bolts in traditional flange connection methods. At the same time, the polygonal segmented wind turbine tower reduces the difficulty of processing and transportation, simplifies construction, and promotes efficiency improvement. The connection sections using structural high-strength rivets can be maintenance-free, saving maintenance costs.

[0004] However, after the device completes the connection of the longitudinal tower sections, the outer connecting wing plate will protrude a section from the outer wall of the tower. Rainwater and dew dripping from the outer wall of the tower can easily enter the gap between the adjacent tower sections from the outer connecting wing plate, thereby affecting the service life of the tower. In addition, the tower formed by multiple segments relies only on high-strength bolts to complete eccentric force, and its fatigue resistance is weak. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a fatigue-resistant segmented wind turbine tower, which effectively solves the problem that after the existing wind turbine tower completes the connection of the longitudinal tower sections, the outer connecting wing plate will protrude a section from the outer wall of the tower, and rainwater and dew dripping from the outer wall of the tower can easily enter the gap between the adjacent tower sections from the outer connecting wing plate, thereby affecting the service life of the tower; and the tower formed by multiple segments only relies on high-strength bolts to complete eccentric force and has weak anti-fatigue performance.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fatigue-resistant segmented wind power tower, comprising:

[0007] Tower section: It is cylindrical and includes at least two tower segments, and both sides of each tower segment are equipped with mounting parts.

[0008] Connecting assembly: used to fix adjacent mounting parts into a reinforcement member.

[0009] Connecting ring: It can be detachably installed in the tower section, and comprises a mounting portion and a positioning portion embedded in the mounting portion, and both ends of the positioning portion are provided with positioning grooves.

[0010] Furthermore, it also includes a reinforcement component, which includes a supporting longitudinal rod fixedly connected to the tower segment, and a supporting cross rod fixedly connected to the supporting longitudinal rod, and the supporting cross rod is fixedly connected to the tower segment.

[0011] Furthermore, the connection assembly includes a mounting hole opened on the mounting piece and a high-strength bolt arranged in the mounting hole. One end of the high-strength bolt passes through the mounting hole and is threadedly connected with a fixing nut.

[0012] Furthermore, the outer wall of the connecting ring abuts against the inner wall of the tower section, and the top end of the reinforcement is inserted into the positioning groove.

[0013] Furthermore, the mounting portion is provided with connection holes arranged at equal distances, and connection bolts are installed in the connection holes, and one end of the connection bolts is threaded in the tower segment.

[0014] The beneficial effects of the above technical solution are:

[0015] The utility model completes the assembly of a plurality of tower segments by matching the tower segments, mounting parts, connecting components and connecting rings, and fixes the adjacent mounting parts into a reinforcing member through the connecting component, so that the plurality of tower segments can form a columnar structure, and improve the overall structural strength of the tower segment through the reinforcing member, and then completes the connection of the longitudinally adjacent tower segments through the connecting ring, so that no bulge is formed on the outside of the tower segment, thereby avoiding corrosion of the tower by rainwater on the outer wall of the tower, and the reinforcing member can be inserted into the inside of the positioning groove, and can be limited and reinforced again at both ends of the reinforcing member, so as to improve the fatigue resistance of the tower segment itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure in the middle.

[0019] Figure numerals: 1. tower segment; 2. mounting part; 3. mounting hole; 4. high-strength bolt; 5. fixing nut; 6. supporting longitudinal rod; 7. supporting cross rod; 8. mounting part; 9. positioning part; 10. positioning groove; 11. connecting hole; 12. connecting bolt. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0021] Reference Figure 1-3 , a fatigue-resistant segmented wind power tower, comprising a tower section, a connecting assembly, a connecting ring and a reinforcement assembly:

[0022] The tower section is cylindrical and includes at least two tower segments 1. Mounting parts 2 are installed on both sides of each tower segment 1. The two mounting parts 2 are respectively located at the two ends of the tower segment 1. The tower segment 1 and the mounting parts 2 are integrally formed. When adjacent tower segments 1 are assembled, the mounting parts 2 are pre-selected in contact, and after the adjacent tower segments 1 are spliced, a cylindrical structure, a polygonal column structure or a conical structure can be formed.

[0023] The reinforcement component includes a supporting longitudinal rod 6 fixedly connected to the tower segment 1, to which a supporting cross rod 7 is fixedly connected, and the supporting cross rod 7 is fixedly connected to the tower segment 1. The fishbone structure formed by the supporting longitudinal rod 6 and the supporting cross rod 7 can enhance the structural strength of the tower segment 1 itself, so that it can withstand larger impacts.

[0024] The connecting assembly is used to fix adjacent mounting parts 2 into a reinforcement member. The connecting assembly includes a mounting hole 3 opened on the mounting part 2, a high-strength bolt 4 arranged in the mounting hole 3, one end of the high-strength bolt 4 passes through the mounting hole 3 and is threadedly connected with a fixing nut 5. When splicing the tower sections, the high-strength bolt 4 and the fixing nut 5 can be used to fix the two mounting parts 2 into a structure, and the structure forms the reinforcement ribs of the tower section itself.

[0025] The connecting ring can be detachably installed in the tower section, and the connecting ring can be installed at the top or bottom of the tower section. The preferred solution of the present application is to install the connecting ring at the top of the tower section, including a mounting portion 8 and a positioning portion 9 embedded in the mounting portion 8. Positioning grooves 10 are provided at both ends of the positioning portion 9. The outer wall of the connecting ring abuts against the inner wall of the tower section, and the top end of the reinforcement is inserted into the positioning groove 10. The two positioning grooves 10 are not completely penetrated, and the positioning portion 9 can be inserted into the reinforcement through the positioning groove 10 to complete the positioning of the connecting ring, and the reinforcement formed by the two mounting parts 2 can also be limited and fixed again.

[0026] The mounting portion 8 is provided with connection holes 11 which are arranged at equal distances. A connection bolt 12 is installed in the connection hole 11, and one end of the connection bolt 12 is threaded in the tower segment 1. The connection holes 11 are designed in double rows, and the connection ring can be installed on the two tower segments through two groups of connection holes 11 and connection bolts 12 respectively.

[0027] Working principle, installation of tower segments: use a crane to align the mounting parts 2 on two adjacent tower segments 1. At this time, the mounting holes 3 on the two mounting parts 2 are aligned, and then the adjacent mounting parts 2 are fixed into a reinforcement member through high-strength bolts 4 and fixing nuts 5. Repeat the above operation until a tower segment is formed. Installation of the connecting ring: use a crane to lift the connecting ring, align the positioning groove 10 with the reinforcement member on the connected tower segment, and position the connecting ring on the tower segment through the positioning groove 10, and then fix the connecting ring on the tower segment through the connecting hole 11 and the connecting bolt 12. No bulge will be formed on the outside of the tower segment, thereby avoiding corrosion of the tower by rainwater on the outer wall of the tower. The reinforcement member can be inserted into the inside of the positioning groove 10, and can be limited and reinforced again at both ends of the reinforcement member, so as to improve the fatigue resistance of the tower segment itself.

Claims

1. A fatigue-resistant segmented wind turbine tower, characterized in that: include: The tower section is cylindrical and comprises at least two tower segments (1), and each of the tower segments (1) is provided with mounting parts (2) on both sides thereof; Connecting assembly: used to fix adjacent mounting members (2) into a reinforcement member; The connecting ring is detachably mounted in the tower section, and comprises a mounting portion (8) and a positioning portion (9) embedded in the mounting portion (8), wherein both ends of the positioning portion (9) are provided with positioning grooves (10).

2. The fatigue-resistant segmented wind turbine tower according to claim 1, characterized in that: It also comprises a reinforcement component, the reinforcement component comprising a support longitudinal rod (6) fixedly connected to the tower segment (1), a support cross rod (7) fixedly connected to the support longitudinal rod (6), and the support cross rod (7) fixedly connected to the tower segment (1).

3. The fatigue-resistant segmented wind turbine tower according to claim 1, characterized in that: The connection assembly comprises a mounting hole (3) formed on a mounting member (2), and a high-strength bolt (4) disposed in the mounting hole (3); one end of the high-strength bolt (4) passes through the mounting hole (3) and is threadedly connected to a fixing nut (5).

4. The fatigue-resistant segmented wind turbine tower according to claim 1, characterized in that: The outer wall of the connecting ring abuts against the inner wall of the tower section, and the top end of the reinforcement member is inserted into the positioning groove (10).

5. The fatigue-resistant segmented wind turbine tower according to claim 1, characterized in that: The mounting portion (8) is provided with connection holes (11) arranged at equal distances, a connection bolt (12) is installed in the connection hole (11), and one end of the connection bolt (12) is threaded in the tower segment (1).

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