Tower top rotatable tool of wind power mixing tower

Abstract

The tower top rotatable tool comprises a steel cable, a tower drum, a support, a large arm and a fixing frame, the tower drum is in a hollow cylindrical shape, first cable penetrating holes are formed in the circumferential face, close to the inner wall of the tower drum, of the tower drum at equal angles, and embedded bolts are arranged on the circumferential face, close to the outer wall of the tower drum, of the tower drum at equal angles; the support is arranged on the circumferential face between the first cable penetrating hole and the embedded bolt and can slide on the top of the tower barrel, the fixing frame is arranged in the center of the tower barrel and fixedly connected with the tower barrel, a through hole is formed in the center of the fixing frame, the fixing frame is connected with the support through a large arm, and the end, close to the fixing frame and the support, of the large arm is provided with a fixed pulley. The steel cable comes out of the first cable penetrating hole and sequentially passes through the two fixed pulleys and a through hole in the center of the fixing frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of prestressed installation of wind power hybrid towers, and more specifically, relates to a rotatable tooling on the top of a wind power hybrid tower. Background Art

[0002] In the field of wind power hybrid towers, the traditional method for the hoisting and bundling of prestressed steel strands is to install a rotating crane on the top of the tower through a large lifting device, and use the rotating arm and power traction device of the rotating crane to pull the steel strands at the bottom of the tower to the top and carry out the top bundling. However, installing the rotating crane on the top of the tower requires the use of large lifting equipment (generally, the tower piece's lifting equipment can be used), and after the hoisting and bundling is completed, it is also necessary to use a large crane to rotate the top surface to the ground. This hoisting and bundling operation method is highly dependent on large lifting equipment, so there are certain limitations in terms of efficiency.

[0003] In order to improve work efficiency, reduce dependence on large lifting equipment, and take into account work safety. A rotatable assembled tower crane steering device has been developed here, which can be disassembled into lightweight tooling components and carried to the top by simple traction ropes or manually. After the tooling is assembled, it can be rotated 360 degrees through the central fixed support structure and the triangular rotatable support on the outside of the cantilever, and each bundle of steel strands can be hoisted and threaded one by one. After completing the top hoisting and threading operation, it can be disassembled and carried to the ground by simple traction ropes or manually. Effectively improve construction efficiency and reduce dependence on large lifting equipment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a rotatable tooling on the top of a wind power hybrid tower which can improve the safety and installation efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A rotatable tooling for the top of a wind power hybrid tower comprises a steel cable, a tower, a support, a boom and a fixed frame. The tower is in a hollow cylindrical shape, a first cable-through hole is provided at an equal angle on a circumferential surface close to the inner wall of the tower, and embedded bolts are provided at an equal angle on a circumferential surface close to the outer wall of the tower. The support is arranged on a circumferential surface between the first cable-through hole and the embedded bolts and can slide on the top of the tower. The fixed frame is arranged at the center of the tower and fixedly connected to the tower. A through hole is provided at the center of the fixed frame. The fixed frame and the support are connected through a boom. A fixed pulley is provided at each end of the boom close to the fixed frame and the support. The steel cable comes out of the first cable-through hole and passes through two fixed pulleys and the through hole in the center of the fixed frame in sequence.

[0007] The utility model discloses a rotatable tooling for the top of a wind power hybrid tower, wherein the fixing frame is composed of n supporting legs, wherein n≥3, n vertical clamping plates, wherein n≥3, a main plate and a hollow tube, one end of the supporting leg is fixedly connected to a side wall of a tower tube, the other end of the supporting leg is fixedly connected to the vertical clamping plate, the main plate is fixedly arranged on the top of the vertical clamping plate and a through hole is arranged at the center, the hollow tube is arranged on the top of the main plate and is concentric with the through hole, and a second cable threading hole is arranged at a position where the side wall of the hollow tube is at the same height as a fixed pulley.

[0008] The utility model discloses a rotatable tooling on the top of a wind power hybrid tower. A plurality of wing plates are arranged at equal angles on the bottom of the side wall of the hollow tube.

[0009] The utility model discloses a rotatable tooling for the top of a wind power hybrid tower, wherein an angle between a support leg and a circumferential surface of a tower barrel top is θ, and θ satisfies 20°<θ<60°.

[0010] The utility model discloses a rotatable tooling on the top of a wind power hybrid tower, wherein the legs are connected to the tower side wall via a connecting piece, the connecting piece is fixedly connected to the tower side wall, and the connecting piece is hinged to the legs.

[0011] The utility model discloses a rotatable tooling for the top of a wind power hybrid tower, wherein one end of a support leg fixedly connected to a vertical clamping plate is provided with a connecting piece, the vertical clamping plate is provided with a strip opening, and the connecting piece and the strip opening are connected by bolts.

[0012] The utility model discloses a rotatable tooling on the top of a wind power hybrid tower. The support is triangular in shape and consists of two pillars and a reinforcing rib column. The reinforcing rib column is arranged in the middle of the support, and a roller is arranged at the bottom of the support.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] For tower types with a steel transition section on the top of the mixed tower, the steel transition section can be used as the fulcrum, and there is no need to set up separate tower top tooling. However, for tower types without a steel transition section on the top of the mixed tower, certain tooling needs to be set up on the tower top to pull the steel strands to a certain height before subsequent bundle threading construction can be carried out.

[0015] This tooling is lighter than the heavy tower top slewing crane and does not require lifting equipment to lift the tooling to the top of the concrete tower.

[0016] This tool can realize the rotating lifting function through the assembled steel assembly. This tool can be disassembled into assembled steel components, which is easy to assemble and carry.

[0017] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a schematic diagram of the utility model;

[0020] Figure 2 It is a partial schematic diagram of the utility model;

[0021] Figure 3 It is an enlarged view of point A of the utility model;

[0022] The markings in the figure are: 1. tower; 2. support; 3. boom; 4. fixing frame; 5. first cable hole; 6. embedded bolt; 7. second cable hole; 8. fixed pulley; 9. support leg; 10. vertical splint; 11. main board; 12. hollow tube; 13. wing plate; 14. connecting piece. DETAILED DESCRIPTION

[0023] The following, with reference to the accompanying drawings, describes the embodiments and further explains the specific implementation methods of the utility model, such as the shapes and structures of the components involved, the relative positions and connection relationships between the components, the functions and working principles of the components, the manufacturing process and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the utility model.

[0024] A rotatable tooling for the top of a wind power hybrid tower comprises a steel cable, a tower 1, a support 2, a boom 3 and a fixing frame 4. The tower 1 is in the shape of a hollow cylinder. A first cable hole 5 is provided at an equal angle on the circumferential surface close to the inner wall of the tower 1. Embedded bolts 6 are provided at an equal angle on the circumferential surface close to the outer wall of the tower 1. The support 2 is arranged on the circumferential surface between the first cable hole 5 and the embedded bolts 6 and can slide on the top of the tower 1. The fixing frame 4 is arranged at the center of the tower 1 and is fixedly connected to the tower 1. A through hole is provided at the center of the fixing frame 4. The fixing frame 4 is connected to the support 2 through the boom 3. A fixed pulley 8 is provided at the end of the boom 3 close to the fixing frame 4 and the support 2. The steel cable comes out of the first cable hole 5 and passes through two fixed pulleys 8 and the through hole in the center of the fixing frame 4 in sequence.

[0025] The fixing frame 4 is composed of n supporting legs 9 where n≥3, n vertical clamping plates 10 where n≥3, a main plate 11 and a hollow tube 12. One end of the supporting leg 9 is fixedly connected to the side wall of the tower 1, and the other end of the supporting leg 9 is fixedly connected to the vertical clamping plate 10. The main plate 11 is fixedly arranged on the top of the vertical clamping plate 10 and a through hole is arranged at the center. The hollow tube 12 is arranged on the top of the main plate 11 and is concentric with the through hole. A second cable hole 7 is arranged on the side wall of the hollow tube 12 at the same height as the fixed pulley 8; a plurality of wing plates 13 are arranged at equal angles on the bottom of the side wall of the hollow tube 12.

[0026] Through the above arrangement: the vertical clamping plate 10 is used to support the main plate 11, and the bending moment and vertical pressure transmitted from the upper side are transferred through the wing plate 13, and are respectively transmitted to the four legs 9 below; the hollow tube 12 is welded on the wing plate 13, and a plurality of wing plates 13 are used to form a fixed

[0027] The angle between the support leg 9 and the circumferential surface of the top of the tower 1 is θ, and θ satisfies 20°<θ<60°.

[0028] Through the above settings: the angle between the inclined legs and the horizontal plane should be appropriately adjusted according to the conditions of the construction site. It is recommended that the angle be controlled within 20° to 60°: if the angle is too small, stable construction cannot be achieved; if the angle is too large, the length of the material will be wasted.

[0029] The supporting leg 9 is connected to the side wall of the tower 1 via a connecting piece 14 . The connecting piece 14 is fixedly connected to the side wall of the tower 1 , and the connecting piece 14 is hinged to the supporting leg 9 .

[0030] One end of the supporting leg 9 fixedly connected to the vertical clamping plate 10 is provided with a connecting piece, and the vertical clamping plate 10 is provided with a strip opening, and the connecting piece and the strip opening are connected by bolts.

[0031] Through the above arrangement, strip-shaped openings are provided to facilitate proper height adjustment of the positions of the four legs 9 during on-site installation.

[0032] The support 2 is triangular in shape and consists of two pillars and a reinforcing rib column. The reinforcing rib column is arranged in the middle of the support 2, and a roller is arranged at the bottom of the support 2.

[0033] Working principle and method

[0034] Installation: The rotating lifting fixture is carried manually or placed on the top surface of the tower with the help of a crane. After forming a stable fixture, the fixed pulley is hoisted.

[0035] Work: lower one end of the steel cable from the first cable hole 5 to the bottom of the tower and connect it to the steel strand bundle to be pulled. Lower the other end along the support 2, fixed pulley 8, boom 3, fixed pulley 8, second cable hole 7 and the through hole in the fixed frame 4 to the winch at the bottom of the tower. Start the winch to pull the bundle of steel strands to the top of the tower and carry out subsequent work such as anchor replacement, installation, and bundle insertion at the bottom of the tower.

[0036] Adjustment: push the support 2 to slide on the top of the tower, lower the steel cable from the other first cable hole 5, pull the steel strand, repeat the above operation, and pull and thread other steel strand bundles until all the steel strand bundles of this tower are threaded. The tower top tooling can be disassembled and removed, and subsequent work such as steel strand tensioning can be carried out.

[0037] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A rotatable tooling for the top of a wind power hybrid tower, comprising a steel cable, a tower, a support, a large arm and a fixed frame, wherein the tower is in a hollow cylindrical shape, a first cable hole is provided at an equal angle on the circumferential surface close to the inner wall of the tower, and an embedded bolt is provided at an equal angle on the circumferential surface close to the outer wall of the tower, characterized in that: The support is arranged on the circumferential surface between the first cable insertion hole and the embedded bolt and can slide on the top of the tower. The fixed frame is arranged at the center of the tower and is fixedly connected to the tower. A through hole is arranged in the center of the fixed frame. The fixed frame and the support are connected through a large arm. A fixed pulley is respectively arranged at the end of the large arm close to the fixed frame and the support. The steel cable comes out of the first cable insertion hole and passes through two fixed pulleys and the through hole in the center of the fixed frame in sequence.

2. The rotatable tooling for the top of a wind power hybrid tower according to claim 1, characterized in that: The fixing frame is composed of n legs where n≥3, n vertical clamps where n≥3, a main board and a hollow tube. One end of the leg is fixedly connected to the side wall of the tower, and the other end of the leg is fixedly connected to the vertical clamp. The main board is fixedly arranged on the top of the vertical clamp and a through hole is arranged at the center. The hollow tube is arranged on the top of the main board and is concentric with the through hole. A second cable threading hole is arranged on the side wall of the hollow tube at the same height as the fixed pulley.

3. The rotatable tooling for the top of a wind power hybrid tower according to claim 2, characterized in that: A plurality of wing plates are arranged at equal angles at the bottom of the side wall of the hollow tube.

4. The rotatable tooling for the top of a wind power hybrid tower according to claim 2, characterized in that: The angle between the support leg and the circumferential surface of the tower top is θ, and θ satisfies 20°<θ<60°.

5. The rotatable tooling for the top of a wind power hybrid tower according to claim 2, characterized in that: The supporting legs are connected to the side walls of the tower via a connecting piece, the connecting piece is fixedly connected to the side walls of the tower, and the connecting piece is hinged to the supporting legs.

6. The rotatable tooling for the top of a wind power hybrid tower according to claim 5, characterized in that: One end of the supporting leg fixedly connected to the vertical clamping plate is provided with a connecting piece, the vertical clamping plate is provided with a strip opening, and the connecting piece and the strip opening are connected by bolts.

7. The rotatable tooling for the top of a wind power hybrid tower according to claim 1, characterized in that: The support is triangular in shape and consists of two pillars and a reinforcing rib column. The reinforcing rib column is arranged in the middle of the support, and a roller is arranged at the bottom of the support.

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