An assembled wind power cable bridge structure

Abstract

This utility model discloses a prefabricated wind power cable tray structure, including two longitudinal beams arranged side by side, and a horizontal beam A and a horizontal beam B installed perpendicularly to the two longitudinal beams. Both ends of horizontal beams A and B are connected to the longitudinal beams along their length direction via connecting corner fittings, with integrally formed bent portions at both ends of the connecting corner fittings. The longitudinal beams, horizontal beam A, and horizontal beam B are all square structures. T-slots are provided in the four end faces of the longitudinal beams and horizontal beam A, with inwardly bent flanges at the openings of the T-slots. T-slots are provided in the left and right end faces of horizontal beam B, and multiple fixing holes are provided on the remaining two end faces of horizontal beam B. The prefabricated wind power cable tray structure provided by this utility model, through modular design and assembly, can effectively avoid the technical bottlenecks of traditional welded cable trays, improve production efficiency, increase product yield, reduce labor intensity and processing time, and reduce risks during use.

Description

Technical Field

[0001] This utility model relates to a prefabricated wind power cable tray structure, belonging to the field of wind power technology. Background Technology

[0002] With the continuous development of wind power technology, the height and performance of wind turbine towers are constantly improving. Tall tower technology helps increase the power generation of wind turbines; therefore, the design innovation and structural optimization of wind turbine tower platform technology and internal accessories have received widespread attention. Against this backdrop, the design and selection of internal accessories for wind turbine towers have become increasingly important. The selection of accessories needs to consider various factors, including strength, safety, stability, durability, and ease of maintenance.

[0003] Wind power cable trays are an indispensable part of the accessories inside the tower platform. Their main function is to provide basic support for the routing and safety of various machine cables on the platform. Currently, welded cable trays are commonly used in the market. This structure has the following problems in the manufacturing and use process:

[0004] 1. High dependence on technology: It requires welders with special operation qualifications to complete the work. The operating methods and current and voltage parameters of different welders directly affect the quality of the weld, which can easily lead to welding defects and make product quality control difficult.

[0005] 2. Long production cycle: Welded cable trays require grinding to remove the oxide layer before welding. After welding, the welded areas need to be sprayed, making the construction complex and the production cycle long.

[0006] 3. Poor strength of the heat-affected zone: The strength of the heat-affected zone of the weld can only reach about 70% of the strength of the base material. During long-term use, the product is at risk of fatigue cracking in the heat-affected zone around the weld.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] This utility model addresses the shortcomings of the prior art by providing a prefabricated wind power cable tray structure. Through modular design and assembly, it can effectively avoid the technical bottlenecks of traditional welded cable trays, improve production efficiency, increase product yield, reduce manual labor intensity and processing time, and reduce risks during use.

[0009] To solve the above technical problems, the present invention adopts the following technical solution:

[0010] A prefabricated wind power cable tray structure includes two longitudinal beams arranged side by side, and a crossbeam A and a crossbeam B installed between the two longitudinal beams perpendicular to them. The ends of the crossbeams A and B along the length direction are connected to the longitudinal beams by connecting corner pieces, and the two ends of the connecting corner pieces are respectively provided with bent portions integrally formed therewith.

[0011] The longitudinal beam, crossbeam A, and crossbeam B are all square structures. T-slots are provided in the four end faces of the longitudinal beam and crossbeam A, and the openings of the T-slots are provided with inwardly bent flanges. T-slots are provided in the left and right end faces of crossbeam B, and multiple fixing holes are provided on the other two end faces of crossbeam B.

[0012] Furthermore, the longitudinal beam, crossbeam A, and crossbeam B are all made of extruded aluminum alloy profiles.

[0013] Furthermore, the T-slot is arranged to run through the longitudinal beam, crossbeam A, and crossbeam B along their length.

[0014] Furthermore, the fixing holes are evenly distributed along the length of the crossbeam B.

[0015] Furthermore, the connecting corner pieces are locked in position using bolts.

[0016] Furthermore, the main body of the connecting corner piece has two bolt holes with perpendicular center lines, which are used for the bolt shank to pass through.

[0017] Furthermore, the bending section is an isosceles trapezoidal structure, and the bending section is located in the T-slot of the longitudinal beam, crossbeam A, or crossbeam B.

[0018] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0019] This invention employs modular assembly technology, eliminating the impact of welding on the cable tray structure. Compared to existing welded cable tray structures on the market, it reduces manufacturing difficulty. Eliminating welding eliminates the need for grinding and post-weld painting of cable tray parts, effectively shortening the production cycle. This invention not only meets existing structural strength and functional requirements but also offers better installation methods, improved installation efficiency, recyclability, and extended service life. Furthermore, the reduced weight of the assembled aluminum alloy cable tray also significantly reduces the load on the tower structure.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2This is a schematic diagram of the connection node between the longitudinal beam and the transverse beam A;

[0023] Figure 3 yes Figure 2 Side view of the middle structure;

[0024] Figure 4 This is a schematic diagram of the connection node between the longitudinal beam and the transverse beam B;

[0025] Figure 5 This is a schematic diagram of the cross-section of the longitudinal beam;

[0026] Figure 6 This is a structural diagram of the connecting corner piece.

[0027] In the diagram, 1-longitudinal beam, 11-flanged edge; 2-crossbeam A; 3-crossbeam B, 31-fixing hole; 4-connecting corner piece, 41-bend, 42-bolt hole; 5-bolt. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0029] like Figures 1-6 As shown in the figure, this utility model provides a prefabricated wind power cable tray structure, including two longitudinal beams 1 arranged side by side, and a crossbeam A2 and a crossbeam B3 arranged perpendicularly to the two longitudinal beams 1. The ends of the crossbeams A2 and B3 along the length direction are connected to the longitudinal beams 1 by connecting corner pieces 4, and the connecting corner pieces 4 are locked in position by bolts 5.

[0030] The longitudinal beam 1, the transverse beam A2, and the transverse beam B3 are all made of high-strength, high-hardness aluminum alloy extruded profiles and are all square structures.

[0031] The longitudinal beam 1 and the transverse beam A2 are made of the same profile. Each of the four end faces of the longitudinal beam 1 and the transverse beam A2 has a T-slot for mounting the bolt head 5. The T-slots are arranged through the longitudinal beam 1 and the transverse beam A2 along their length, and the openings of the T-slots have inwardly bent flanges 11. By adding flanges 11, the installation strength of the profile is enhanced while reducing weight, providing convenience for production and processing.

[0032] The crossbeam B3 has T-slots on both its left and right end faces for mounting bolt heads 5. These T-slots extend through the crossbeam B3 along its length. The other two end faces of the crossbeam B3 have multiple fixing holes 31, evenly distributed along its length. These fixing holes 31 facilitate the control and securing of cables and other accessories, thus improving safety.

[0033] The main body of the connecting corner piece 4 has two bolt holes 42 with perpendicular center lines. The bolt holes 42 are used for the bolt 5 shank to pass through. Both ends of the connecting corner piece 4 are provided with integrally formed bending portions 41. The bending portions 41 are isosceles trapezoidal structures. The bending portions 41 are located in the T-slots of the longitudinal beam 1, the transverse beam A2 or the transverse beam B3, which play a limiting role and effectively improve the connection strength and stability.

[0034] In this invention, the spacing between crossbeams A2 and B3 can be adjusted according to usage conditions to meet the requirements of cable trays.

[0035] The specific working principle of this utility model is as follows:

[0036] This utility model adopts a prefabricated structure. Multiple horizontal beams A2 and B3, perpendicularly arranged to the two longitudinal beams 1, are installed between them via connecting corner fittings 4. The spacing of the horizontal beams A2 and B3 can be flexibly adjusted according to usage requirements to meet the needs of the cable tray. The profiles of the longitudinal beams 1, horizontal beams A2, and horizontal beams B3 are all axisymmetric, facilitating component assembly and greatly improving assembly efficiency. The connecting corner fittings 4 have bends 41 at both ends that provide limiting, effectively enhancing connection strength and stability. The inwardly bent flanges 11 at the openings of the T-slots strengthen the profile installation while reducing weight, facilitating production and processing.

[0037] Compared with existing welded cable tray structures on the market, this utility model reduces the difficulty of manufacturing and shortens the product delivery cycle. This structure not only meets existing structural strength and functional requirements, but also offers better installation methods, improves installation efficiency, and allows for recycling and extended service life. At the same time, the reduced weight of the assembled aluminum alloy cable tray also effectively reduces the load on the tower structure.

[0038] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A prefabricated wind power cable tray structure, characterized in that: It includes two longitudinal beams (1) arranged side by side, and a crossbeam A (2) and a crossbeam B (3) installed between the two longitudinal beams (1) perpendicular to them. The ends of the crossbeams A (2) and B (3) along the length direction are connected to the longitudinal beams (1) by connecting corner pieces (4). The two ends of the connecting corner pieces (4) are respectively provided with bent parts (41) integrally formed with them. The longitudinal beam (1), the crossbeam A (2) and the crossbeam B (3) are all square structures. The longitudinal beam (1) and the crossbeam A (2) are provided with T-shaped grooves in the four end faces. The opening of the T-shaped groove is provided with an inwardly bent flange (11). The crossbeam B (3) is provided with T-shaped grooves in the left and right end faces. The other two end faces of the crossbeam B (3) are provided with multiple fixing holes (31).

2. The prefabricated wind power cable tray structure as described in claim 1, characterized in that: The longitudinal beam (1), the transverse beam A (2) and the transverse beam B (3) are all made of aluminum alloy extruded profiles.

3. The prefabricated wind power cable tray structure as described in claim 1, characterized in that: The T-slot is set through the longitudinal beam (1), the transverse beam A (2) and the transverse beam B (3) along their length.

4. The prefabricated wind power cable tray structure as described in claim 1, characterized in that: The fixing holes (31) are evenly distributed along the length of the crossbeam B (3).

5. The prefabricated wind power cable tray structure as described in claim 1, characterized in that: The connecting corner piece (4) is locked in position by bolts (5).

6. The prefabricated wind power cable tray structure as described in claim 5, characterized in that: The main body of the connecting corner piece (4) has two bolt holes (42) with perpendicular center lines, and the bolt holes (42) are used for the bolt (5) shank to pass through.

7. The prefabricated wind power cable tray structure as described in claim 1, characterized in that: The bending part (41) is an isosceles trapezoidal structure, and the bending part (41) is located in the T-groove of the longitudinal beam (1), the transverse beam A (2) or the transverse beam B (3).

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