Lattice type telescopic tower

Abstract

The utility model provides a lattice telescopic tower, comprising a support frame, a connecting seat and a tower, wherein the top of the support frame is connected to the bottom of the connecting seat, the top of the connecting seat is connected to the bottom of the tower, a cabin is installed on the top of the tower, a hub is installed on the cabin, a fan blade is installed on the hub, and the support frame is installed on the support seat; the support frame is a telescopic structure, and during transportation, the support frame is in a contracted state; when installed and used, the support frame is in an extended state. The lattice telescopic tower provided by the utility model can solve the problems of inconvenient transportation and high transportation cost of existing fan towers.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to a lattice-type telescopic tower. Background Art

[0002] In wind power projects, wind turbine towers are the supporting structures of wind turbines, mainly used to support the weight of the turbines. The tower height is determined by the size of the wind turbine and the expected wind energy resources, and can reach tens of meters or even hundreds of meters. With the rapid development of wind turbines, towers need to have greater height, rigidity and strength, resulting in larger diameters of steel columns that make up wind turbine towers, increasing steel wall thickness, and increasing steel consumption. Such large-sized steel columns are not only inconvenient to transport, but also have high transportation costs. Utility Model Content

[0003] The purpose of the present invention is to solve the problem that the above-mentioned tower tube, in order to meet the requirements of larger megawatt wind turbine units, increases in stiffness, height and strength, resulting in large steel consumption, inconvenience in transportation and increased transportation costs, and to provide a new type of steel tower structure with good economy and convenient transportation.

[0004] The object of the present invention is achieved in that:

[0005] A lattice telescopic tower, comprising a support frame, a connecting seat and a tower, wherein the top of the support frame is connected to the bottom of the connecting seat, the top of the connecting seat is connected to the bottom of the tower, a nacelle is installed on the top of the tower, a hub is installed on the nacelle, a fan blade is installed on the hub, and the support frame is installed on the support seat;

[0006] The support frame is a retractable structure. During transportation, the support frame is in a retracted state; when installed and used, the support frame is in an extended state.

[0007] Furthermore, the support frame includes three steel columns arranged in a triangle, and a reinforcing web assembly is provided between every two adjacent steel columns.

[0008] Furthermore, the three steel columns are arranged in an equilateral triangle.

[0009] Furthermore, each of the steel columns is formed by connecting a plurality of telescopic steel tube assemblies in sequence; each of the telescopic steel tube assemblies includes an outer steel tube and an inner steel tube, and during transportation, the inner steel tube is retracted inside the outer steel tube; during installation and use, the inner steel tube extends from the outer steel tube, and the bottom end of the inner steel tube is connected to the top end of the outer steel tube; between two adjacent telescopic steel tube assemblies, the inner steel tube of one of the telescopic steel tube assemblies is connected to the outer steel tube of the other telescopic steel tube assembly.

[0010] Furthermore, the inner steel pipe is a tapered steel pipe, and the outer steel pipe is a tapered steel pipe matched with the inner steel pipe.

[0011] Furthermore, the reinforced web assembly includes a plurality of transverse webs connected between two adjacent steel columns, the plurality of transverse webs are arranged in sequence and at intervals along the length direction of the steel column, and the plurality of transverse webs are connected in the vertical direction by a longitudinal web, and the longitudinal web is located in the middle of two adjacent transverse webs above and below; two inclined webs are provided between each two adjacent transverse webs above and below, the lower ends of the two inclined webs are respectively connected to the two ends of the transverse web located below, and the upper ends of the two inclined webs are connected to the connection between the longitudinal web and the transverse web located above.

[0012] Furthermore, the reinforcing web rod assembly is made of steel.

[0013] Furthermore, the tower is conical, and the cross-sectional area of ​​the tower gradually increases from the top to the bottom.

[0014] Furthermore, three connecting columns are provided at the bottom end of the connecting seat, each of the connecting columns corresponds to each of the steel columns one by one, the bottom end of each connecting column is provided with a connecting column flange, the top end of each steel column is provided with a steel column flange, and each of the steel column flanges is connected to the corresponding connecting column flange.

[0015] Furthermore, a connecting seat flange is provided at the top end of the connecting seat, a tower flange is provided at the bottom end of the tower, and the tower flange is connected to the connecting seat flange.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the support frame of the utility model is in a retracted state during transportation, with a smaller size, which reduces the floor space and is convenient for transportation; when installed and used, the support frame is in an extended state, which is convenient for assembly and reliable for connection. Therefore, the lattice telescopic tower provided by the utility model solves the problem of difficulty in transporting super-high towers and effectively reduces transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods 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 front view of a triangular lattice telescopic tower according to an embodiment of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the cross section at AA in the middle;

[0020] Figure 3 This is a bottom plan view of the connecting seat of the embodiment of the utility model;

[0021] Figure 4 This is a top plan view of the connecting seat of an embodiment of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the telescopic steel pipe assembly according to an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 100, support frame; 200, connection seat; 300, tower; 400, cabin; 500, hub; 600, fan blade; 700: support seat;

[0025] 1. Steel column; 101. External steel pipe; 102. Internal steel pipe;

[0026] 2. Transverse web member; 3. Longitudinal web member; 4. Inclined web member; 5. Connecting column; 6. Connecting column flange; 7. Connecting seat flange. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] like Figures 1 to 5 As shown, the lattice telescopic tower of the embodiment of the utility model includes a support frame 100, a connection seat 200 and a tower 300. The top of the support frame 100 is connected to the bottom of the connection seat 200, the top of the connection seat 200 is connected to the bottom of the tower 300, a nacelle 400 is installed on the top of the tower 300, a hub 500 is installed on the nacelle 400, a wind turbine blade 600 is installed on the hub 500, and the support frame 100 is installed on the support seat 700. By sequentially arranging the connection seat 200 and the tower 300 on the support frame 100, the overall height of the tower is further increased, and the structure is stable and reliable, meeting the installation requirements of megawatt-class wind turbines.

[0031] The connecting seat 200 adopts a hollow steel cylinder structure, and the connecting seat 200 is compatible with the supporting frame 100 .

[0032] The support frame 100 is a retractable structure. During transportation, the support frame 100 is in a retracted state; when installed and used, the support frame 100 is in an extended state.

[0033] In some more preferred embodiments, the support frame 100 includes three steel columns 1 arranged in a triangle, and a reinforcing web assembly is provided between each two adjacent steel columns 1 to improve the overall structural strength and rigidity of the support frame 100. The three steel columns 1 are arranged in an equilateral triangle, and the size specifications of the reinforcing web assembly between each two adjacent steel columns 1 are the same, which is convenient for processing and manufacturing.

[0034] In some more preferred embodiments, each steel column 1 is formed by connecting a plurality of telescopic steel pipe assemblies in sequence; each telescopic steel pipe assembly includes an outer steel pipe 101 and an inner steel pipe 102. During transportation, the inner steel pipe 102 is retracted into the outer steel pipe 101; during installation and use, the inner steel pipe 102 extends from the outer steel pipe 101, and the bottom end of the inner steel pipe 102 is connected to the top end of the outer steel pipe 101; between two adjacent telescopic steel pipe assemblies, the inner steel pipe 102 of one telescopic steel pipe assembly is connected to the outer steel pipe 101 of another telescopic steel pipe assembly. When each telescopic steel pipe assembly is in the transport state, the inner steel pipe 102 is retracted into the outer steel pipe 101, so the size is smaller, the floor space is reduced, and it is convenient for transportation. When each telescopic steel pipe assembly is in the installation state, the inner steel pipe 102 is extended from the outer steel pipe 101, and the lower end of the inner steel pipe 102 is connected to the upper end of the outer steel pipe 101, so as to realize the extension installation of the telescopic steel pipe assembly, which is convenient for assembly and reliable for connection.

[0035] In some more preferred embodiments, the inner steel tube 102 is a conical steel tube, and the outer steel tube 101 is a conical steel tube matched with the inner steel tube 102, so that when the inner steel tube 102 and the outer steel tube 101 are extended in coordination, a limiting effect can be played.

[0036] In some more preferred embodiments, the reinforcing web assembly includes a plurality of transverse webs 2 connected between two adjacent steel columns, the plurality of transverse webs 2 are arranged in sequence along the length direction of the steel column 1, and the plurality of transverse webs 2 are connected in the vertical direction by longitudinal webs 3, and the longitudinal webs 3 are located in the middle of two transverse webs 2 adjacent to each other; two inclined webs 4 are arranged between each two transverse webs 2 adjacent to each other, the lower ends of the two inclined webs 4 are respectively connected to the two ends of the transverse web 2 located below, and the upper ends of the two inclined webs 4 are connected to the connection between the longitudinal web 3 and the transverse web 2 located above. That is, by respectively arranging the transverse webs 2, the longitudinal webs 3 and the inclined webs 4 between the three steel columns 1, not only the overall structural strength and rigidity of the support frame 100 are improved, but also the overall stability and reliability of the support frame 100 are improved, so as to meet the bearing capacity of the wind turbine unit. The reinforcing web assembly is made of steel.

[0037] In some more preferred embodiments, the tower 300 is tapered, and the cross-sectional area of ​​the tower 300 gradually increases from the top to the bottom, further improving the structural stability and reliability of the tower 300.

[0038] In some more preferred embodiments, three connecting columns 5 are provided at the bottom end of the connecting seat 200, and each connecting column 5 corresponds to each steel column 1 one by one. A connecting column flange 6 is provided at the bottom end of each connecting column 5, and a steel column flange is provided at the top end of each steel column 1. Each steel column flange is connected to each connecting column flange 6 accordingly, thereby realizing stable and reliable installation of the connecting seat 200 on the support frame 100.

[0039] In some more preferred embodiments, a connecting seat flange 7 is provided at the top of the connecting seat 200, and a tower flange is provided at the bottom end of the tower 300, and the tower flange is connected to the connecting seat flange 7, thereby realizing stable and reliable installation of the tower 300 on the connecting seat 200.

[0040] Therefore, the lattice telescopic tower of the embodiment of the utility model solves the problem of difficulty in transporting an ultra-high tower and effectively reduces the transportation cost.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A lattice telescopic tower, characterized in that: The invention comprises a support frame (100), a connection seat (200) and a tower (300), wherein the top end of the support frame (100) is connected to the bottom end of the connection seat (200), the top end of the connection seat (200) is connected to the bottom end of the tower (300), a cabin (400) is installed on the top end of the tower (300), a wheel hub (500) is installed on the cabin (400), a fan blade (600) is installed on the wheel hub (500), and the support frame (100) is installed on the support seat (700); The support frame (100) is a retractable structure; during transportation, the support frame (100) is in a retracted state; when installed and used, the support frame (100) is in an extended state.

2. The lattice telescopic tower according to claim 1, characterized in that: The support frame (100) comprises three steel columns (1) arranged in a triangle, and a reinforcing web member assembly is provided between every two adjacent steel columns (1).

3. The lattice telescopic tower according to claim 2, characterized in that: The three steel columns (1) are arranged in an equilateral triangle.

4. The lattice telescopic tower according to claim 2, characterized in that: Each of the steel columns (1) is formed by connecting a plurality of telescopic steel pipe assemblies in sequence; each of the telescopic steel pipe assemblies comprises an outer steel pipe (101) and an inner steel pipe (102); during transportation, the inner steel pipe (102) is retracted inside the outer steel pipe (101); during installation and use, the inner steel pipe (102) extends from the outer steel pipe (101), and the bottom end of the inner steel pipe (102) is connected to the top end of the outer steel pipe (101); between two adjacent telescopic steel pipe assemblies, the inner steel pipe (102) of one of the telescopic steel pipe assemblies is connected to the outer steel pipe (101) of the other telescopic steel pipe assembly.

5. The lattice telescopic tower according to claim 4, characterized in that: The inner steel pipe (102) is a tapered steel pipe, and the outer steel pipe (101) is a tapered steel pipe that matches the inner steel pipe (102).

6. The lattice telescopic tower according to claim 2, characterized in that: The reinforcing web member assembly comprises a plurality of transverse web members (2) connected between two adjacent steel columns, wherein the plurality of transverse web members (2) are arranged in sequence and spaced apart along the length direction of the steel column (1), and the plurality of transverse web members (2) are connected in the vertical direction by a longitudinal web member (3), wherein the longitudinal web member (3) is located in the middle of two transverse web members (2) adjacent to each other; two inclined web members (4) are arranged between each two transverse web members (2) adjacent to each other, wherein the lower ends of the two inclined web members (4) are respectively connected to the two ends of the transverse web member (2) located below, and the upper ends of the two inclined web members (4) are connected to the connection between the longitudinal web member (3) and the transverse web member (2) located above.

7. The lattice telescopic tower according to claim 6, characterized in that: The reinforcing web rod assembly is made of steel.

8. The lattice telescopic tower according to claim 1, characterized in that: The tower (300) is conical, and the cross-sectional area of ​​the tower (300) gradually increases from the top to the bottom.

9. The lattice telescopic tower according to claim 2, characterized in that: The bottom end of the connecting seat (200) is provided with three connecting columns (5), each of the connecting columns (5) corresponds to each of the steel columns (1) one by one, the bottom end of each of the connecting columns (5) is provided with a connecting column flange (6), the top end of each of the steel columns (1) is provided with a steel column flange, and each of the steel column flanges is connected to the corresponding connecting column flange (6).

10. The lattice telescopic tower according to claim 1, characterized in that: A connection seat flange (7) is provided at the top end of the connection seat (200), and a tower flange is provided at the bottom end of the tower (300), and the tower flange is connected to the connection seat flange (7).

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