Framework type tower construction node structure

Abstract

The utility model relates to a framework type tower structure node structure which comprises a transverse rod, an inclined rod and a connecting module, and the transverse rod and the inclined rod are both arranged to be square pipes; the connecting module is arranged in the middle of the cross rod, the four inclined rods are detachably connected to the connecting module, and the four inclined rods are located in four different directions; the connecting module comprises a connecting plate and a connecting part; the connecting plates are attached to the upper side and the lower side of the transverse rod correspondingly and are detachably connected. The four connecting parts are arranged in one-to-one correspondence with the four inclined rods, are detachably mounted on the connecting plates located on the upper surfaces of the cross rods, and are used for detachably connecting the inclined rods with the cross rods. According to the framework type tower, the cross rods and the inclined rods of the square pipes are detachably connected through the connecting modules, the cross rod and inclined rod system does not have welding seams perpendicular to the stress level, the risk of fatigue damage of a welded steel structure is avoided, the welding work amount of nodes of the cross rods and the inclined rods is reduced, the production work amount is reduced, and the cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wind power towers, and in particular to a frame-type tower construction node structure. Background Art

[0002] With the increase of wind power projects in my country, some wind farms with better wind resources have been gradually developed. In order to make better use of wind resources at higher altitudes, wind power towers are gradually developing towards high towers.

[0003] In the middle part of the traditional crossbar, the oblique rod round steel pipe and the crossbar round steel pipe are assembled and welded. This method will cause excessive welding stress, low strength, welding deformation, and seriously cause unsmooth installation on site. In addition, due to the difference in diameter-to-thickness ratio, the oblique rod round steel pipe usually has a slightly larger rotation radius when the cross-sectional area is the same, which has certain advantages in compressive stability. However, the fatigue resistance of the round steel pipe is poor, whether it is the intersecting welding or the steel plug welding node. If it is used in a prestressed frame tower, the fatigue effect will control the design.

[0004] Therefore, there is an urgent need to provide a frame-type tower construction node structure to solve the above-mentioned technical problems. Utility Model Content

[0005] Based on this, a frame-type tower structural node structure is provided. There are no welds perpendicular to the stress level in the horizontal and diagonal rod systems, and there is no risk of fatigue failure of the welded steel structure. The welding workload of the horizontal and diagonal rod nodes is reduced, the production workload is reduced, and the cost is reduced.

[0006] On the one hand, a frame-type tower construction node structure is provided, comprising: a cross bar, an oblique bar and a connecting module, wherein the cross bar and the oblique bar are both configured as square tubes; the connecting module is arranged in the middle position of the cross bar, and the four oblique bars are respectively detachably connected to the connecting module, and the four oblique bars are respectively located in four different orientations; wherein the connecting module comprises a connecting plate and a connecting portion; the connecting plates are respectively attached to the upper and lower sides of the cross bar, and are detachably connected; the connecting portions are arranged in four and are arranged one-to-one corresponding to the four oblique bars, and the connecting portions are detachably mounted on the connecting plates located on the upper surface of the cross bar, and the connecting portions are used to detachably connect the oblique bars and the cross bar.

[0007] Furthermore, a compensating connecting plate is provided between the connecting plate and the cross bar.

[0008] Furthermore, a mounting panel is provided between the connecting plate and the connecting portion on the upper surface of the crossbar; and all the connecting portions can be detachably mounted on the mounting panel.

[0009] Furthermore, the cross bar and the compensating connecting plate located on its upper surface, the connecting plate and the mounting panel are detachably connected via multiple groups of first detachable connecting parts; the cross bar and the compensating connecting plate located on its lower surface and the connecting plate are detachably connected via multiple groups of first detachable connecting parts.

[0010] Furthermore, the connecting part includes a first connecting part and a second connecting part; the first connecting part is fixed on the mounting panel; the second connecting part is detachably connected to the first connecting part, and an end of the second connecting part away from the first connecting part is inserted into the inclined rod, and the second connecting part and the inclined rod are detachably connected.

[0011] Furthermore, it also includes four main tower columns distributed in a rectangular shape, and four cross bars are arranged on the same horizontal plane; each of the cross bars is arranged between two adjacent main tower columns, and the two ends of the cross bars are respectively detachably connected to the two adjacent main tower columns; one end of each of the diagonal bars away from the connecting module is respectively detachably connected to the corresponding main tower column.

[0012] Furthermore, a short-circuited square tube is integrally connected to the outer side wall of the main tower column; and the short-circuited square tube is provided with a mounting module for detachably mounting the cross bar or the diagonal bar.

[0013] Furthermore, the mounting module includes a mounting plate, which is provided in two pieces; the two mounting plates are respectively attached to the upper and lower sides of the short-circuited square tube; the ends of the cross bar or the diagonal bar are respectively inserted between the two mounting plates; the two mounting plates jointly connect the ends of the cross bar or the diagonal bar to the short-circuited square tube for detachable docking.

[0014] Furthermore, a compensating mounting plate is provided on the inner side of the mounting plate; one end of the compensating mounting plate is attached to the inner wall of the short-circuited square tube, and a gap is left between the other end of the compensating mounting plate and the mounting plate for inserting the end of the cross bar or the diagonal bar.

[0015] Furthermore, the short-circuit square tube and the mounting plate and the compensating mounting plate located on the surface thereof are detachably connected via multiple groups of second detachable connecting parts; the mounting plate, the compensating mounting plate and the ends of the cross bar or the diagonal bar are also detachably connected via multiple groups of second detachable connecting parts.

[0016] Beneficial effects:

[0017] In the node structure of the frame-type tower structure, the cross bars and diagonal bars are respectively set as square tubes, and the diagonal bars set by the square tubes are more convenient to connect with the cross bars set by the square tubes through the connecting modules, and the use of square tubes reduces the amount of welding work at the connection between the cross bars and diagonal bars originally using round tubes, thereby reducing the production work volume and reducing costs. More importantly, the square tubes can be cut and blanked by modern laser cutting and CNC laser drilling technology to reduce the amount of labor, and the quality of the components manufactured by CNC technology is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a frame-type tower construction node structure in one embodiment;

[0019] Figure 2 for Figure 1 A magnified view of part A in FIG.

[0020] Figure 3 A schematic cross-sectional view showing a middle node of a horizontal and oblique rod in a frame-type tower structural node structure in one embodiment;

[0021] Figure 4 The cross-sectional schematic diagram of the side node of the horizontal and oblique rods is shown in the structural node structure of the frame-type tower in one embodiment.

[0022] Figure numerals: 1. cross bar; 11. hole; 2. diagonal bar; 3. connection module; 31. connection plate; 32. connection part; 321. first connection part; 322. second connection part; 323. connection piece; 33. compensation connection plate; 34. installation panel; 35. first detachable connection piece; 4. main tower column; 41. short-circuit square tube; 5. installation module; 51. installation plate; 52. compensation installation plate; 53. second detachable connection piece. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present application in a schematic manner, and therefore the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0025] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0026] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] The embodiment of the present application provides a frame-type tower structural node structure. In the frame-type tower, the horizontal and diagonal rod structural nodes adopt square tubes. There are no welds perpendicular to the stress level in the horizontal and diagonal rod systems, and there is no risk of fatigue failure of the welded steel structure, which reduces the production engineering workload and reduces costs.

[0028] The following is a detailed description of a frame-type tower construction node structure provided in this embodiment. Please refer to Figure 1-Figure 3 As shown, it includes: a cross bar 1, an oblique bar 2 and a connecting module 3, the cross bar 1 and the oblique bar 2 are both set as square steel pipes; the connecting module 3 is set in the middle position of the cross bar 1, and the four oblique bars 2 are respectively detachably connected to the connecting module 3, and the four oblique bars 2 are respectively located in four different directions; wherein, the connecting module 3 includes a connecting plate 31 and a connecting portion 32; the connecting plate 31 is set in two pieces, and the two connecting plates 31 are respectively attached to the upper and lower sides of the cross bar 1, and are detachably connected; the connecting portion 32 is set in four pieces and is set one by one corresponding to the four oblique bars 2, and the connecting portion 32 is detachably installed on the side of the connecting plate 31 located at the top away from the cross bar 1, and the connecting portion 32 is used for detachably connecting the oblique bar 2 and the cross bar 1.

[0029] In this embodiment, the connecting plates 31 are respectively fitted and contacted on the upper and lower sides of the cross bar 1, and the cross bar 1 is set with a square tube, which is convenient for the fitting and fixing between the connecting plate 31 and the cross bar 1, and has a large contact area and is easy to install. At the same time, the connecting part 32 is installed on the upper connecting plate 31, and then the diagonal rod 2 set with a square tube is detachably connected by using the connecting part 32. Therefore, in the structural nodes where the cross bar 1 and the diagonal rod 2 of the frame tower are connected, both use square steel tubes, which are easy to connect. Compared with the original method of using round steel tubes that require welding, the present application reduces the amount of welding work at the structural nodes of the cross bar 1 and the diagonal rod 2, reduces the amount of production work, and then reduces the cost. In addition, there are no welds perpendicular to the stress level in the cross and diagonal rod system, and there is no risk of fatigue damage of the welded steel structure.

[0030] Please continue to refer to Figure 1-Figure 3 As shown, in this embodiment, it should be noted that a compensation connecting plate 33 is provided between the connecting plate 31 and the cross bar 1. There may be a thickness difference at the connection position. At the position with the thickness difference, the thickness compensation can be performed by adjusting the thickness of the compensation connecting plate 33, so as to adapt to the thickness difference problem at the connection position.

[0031] In one example, a mounting panel 34 is provided between the connecting plate 31 and the connecting portion 32 on the upper surface of the crossbar 1. The mounting panel 34 and the connecting plate 31 are detachably mounted, and all the connecting portions 32 are detachably mounted on the mounting panel 34. Thus, all the connecting portions 32 are detachably integrated on the mounting panel 34, and the mounting panel 34 and the connecting plate 31 are provided as independent parts, which are convenient for transportation and direct assembly on site.

[0032] In another example, four connecting parts 32 are provided and are provided one-to-one with four diagonal bars 2, and the four connecting parts 32 are distributed in a rectangular shape and are respectively distributed at the four end corners of the rectangle, the connecting part 32 includes a first connecting part 321, a second connecting part 322 and a connecting piece 323, the first connecting part 321 is fixed on the installation panel 34, the second connecting part 322 is detachably connected to the first connecting part 321, and the end of the second connecting part 322 away from the first connecting part 321 is inserted into the diagonal bar 2, and the second connecting part 322 and the diagonal bar 2 are detachably connected. Through the cooperation of the first connecting part 321 and the second connecting part 322, the assembly between the diagonal bar 2 and the cross bar 1 can be realized, and each diagonal bar 2 is tilted along the diagonal direction of the installation panel 34.

[0033] In some embodiments, the first connection portion 321 and the second connection portion 322 are detachably connected by a connection member 323. Preferably, the connection member 323 can be a rivet or a high-strength bolt. Of course, the second connection portion 322 and the oblique rod 2 can also be detachably connected by a rivet or a high-strength bolt.

[0034] Furthermore, the cross bar 1 and the compensating connecting plate 33, the connecting plate 31 and the installation panel 34 located on its upper surface are detachably connected through multiple groups of first detachable connecting members 35. The multiple groups of first detachable connecting members 35 are arranged along the length direction of the cross bar 1, and the number of first detachable connecting members 35 can be adjusted according to actual conditions. Preferably, the first detachable connecting members 35 can be rivets or high-strength bolts. When high-strength bolts are used, the high-strength bolts pass through the cross bar 1, the compensating connecting plate 33, the connecting plate 31 and the installation panel 34 in turn and are tightened with nuts.

[0035] The cross bar 1 and the compensating connecting plate 33 and the connecting plate 31 located on its lower surface are also detachably connected through multiple groups of first detachable connecting members 35. The multiple groups of first detachable connecting members 35 are arranged along the length direction of the cross bar 1, and the number of first detachable connecting members 35 can be adjusted according to actual conditions. Preferably, the first detachable connecting members 35 can also be rivets or high-strength bolts. When high-strength bolts are used, the high-strength bolts pass through the cross bar 1, the compensating connecting plate 33 and the connecting plate 31 in turn and are tightened with nuts.

[0036] Of course, in order to facilitate the operation of the first detachable connecting member 35 , a hole 11 is further provided in the middle of the cross bar 1 , and the first detachable connecting member 35 can be operated from the inside through the hole 11 .

[0037] Please refer to Figure 1 , Figure 4 As shown, in the present embodiment, it is also necessary to explain that the frame-type tower construction node structure also includes four main tower columns 4 distributed in a rectangular shape, the lower ends of the main tower columns 4 are installed on the foundation device, and any two adjacent main tower columns 4 among the four main tower columns 4 are connected into a stable steel structure by using multiple inclined rods 2 and multiple cross rods 1, etc. For example, four cross rods 1 are arranged on the same horizontal plane, each cross rod 1 is arranged between two adjacent main tower columns 4, and the two ends of the cross rod 1 are respectively detachably connected to the two adjacent main tower columns 4; the end of each inclined rod 2 away from the connecting module 3 is respectively detachably connected to the corresponding main tower column 4. Therefore, each cross bar 1 is connected to four diagonal bars 2 arranged along the four corner diagonals through a connecting module 3 arranged in the middle of the cross bar 1, wherein the other end of each diagonal bar 2 can be detachably connected to the main tower column 4, so that each main tower column 4 and the two diagonal bars 2 connected thereto will form a triangular structure, and a triangular structure is also formed between each cross bar 1, diagonal bar 2 and main tower column 4. Since the triangular structure is stable, such a connection can increase the stability of the tower.

[0038] Please continue to refer to Figure 1 , Figure 4As shown, in one achievable manner, a short-circuited square tube 41 is integrally connected to the outer wall of the main tower column 4 , and a mounting module 5 for detachably mounting the cross bar 1 or the diagonal bar 2 is provided on the short-circuited square tube 41 .

[0039] In one example, the mounting module 5 includes a mounting plate 51, which is provided in two pieces. The two mounting plates 51 are respectively attached to the upper and lower sides of the short-circuited square tube 41, and the length of the mounting plate 51 is longer than that of the short-circuited square tube 41, that is, the end of the mounting plate 51 is to be exposed from the short-circuited square tube 41. The two mounting plates 51 are independently provided to adapt to the width change of the short-circuited square tube 41, and it is only necessary to fit and fix the two mounting plates 51 to the upper and lower sides of the short-circuited square tube 41. The ends of the crossbar 1 or the diagonal bar 2 are respectively inserted between the two mounting plates 51, and the two mounting plates 51 jointly detachably connect the ends of the crossbar 1 or the diagonal bar 2 to the short-circuited square tube 41. The ends of the crossbar 1 or the diagonal bar 2 can be clamped by the clamping action of the two mounting plates 51.

[0040] Furthermore, a compensation mounting plate 52 is provided on the inner side of the mounting plate 51, one end of the compensation mounting plate 52 is attached to the inner wall of the short-circuited square tube 41, and a gap is left between the other end of the compensation mounting plate 52 and the mounting plate 51, and the gap is for the end of the cross bar 1 or the diagonal bar 2 to be inserted. There may be a thickness difference at the connection position, and at the position with the thickness difference, the thickness can be compensated by adjusting the thickness of the compensation mounting plate 52, so as to adapt to the thickness difference problem at the connection position.

[0041] In some embodiments, the short-circuit square tube 41 and the mounting plate 51 located on its upper surface and the compensating mounting plate 52 are detachably connected via multiple sets of second detachable connectors 53; the short-circuit square tube 41 and the mounting plate 51 located on its lower surface and the compensating mounting plate 52 are also detachably connected via multiple sets of second detachable connectors 53.

[0042] Taking the mounting plate 51 located on the upper surface of the short-circuited square tube 41 as an example, multiple groups of second detachable connectors 53 are arranged along the length direction of the short-circuited square tube 41, and the number of second detachable connectors 53 can be adjusted according to actual conditions. Preferably, the second detachable connector 53 can also be a rivet or a high-strength bolt. If a high-strength bolt is used, the high-strength bolt passes through the compensation mounting plate 52, the short-circuited square tube 41 and the mounting plate 51 in sequence and then is fastened with a nut. Of course, the mounting plate 51, the compensation mounting plate 52 and the end of the cross bar 1 or the diagonal bar 2 are also detachably connected by high-strength bolts, and the high-strength bolt passes through the compensation mounting plate 52, the end of the cross bar 1 or the diagonal bar 2 and the mounting plate 51 in sequence and then is fastened with a nut.

[0043] In this implementation, it should also be noted that the overall node structure of the frame tower structure is hot-dip galvanized for corrosion protection, and the friction surface is treated separately to ensure that the anti-slip coefficient is higher than 0.45. The nodes are all connected by double shear friction. Under the action of reciprocating loads, there is no slip between the node plates, and the anti-corrosion layer will not be damaged. After the frame tower is installed, the horizontal and oblique rod node area is subjected to secondary corrosion protection and painted and sealed. The sealed paint layer will isolate the air to ensure that the anti-corrosion layer of the friction surface is not damaged.

[0044] The implementation principle of this embodiment: square steel tubes are used in the structural nodes of the cross bar 1 and the diagonal bar 2 in the structural node structure of the frame-type tower. The square steel tubes are convenient for the installation of the connecting module 3, so the connecting module 3 is installed in the middle position of the cross bar 1, and the diagonal bars 2 on all sides can be connected through the connecting module 3; and at the side connection of the cross bar 1 and the diagonal bar 2, the use of square steel tubes is also convenient for docking and installation with the short-circuited square tube 41 of the main tower column 4 through the installation module 5. Compared with the cross bar 1 and the diagonal bar 2 originally made of round steel tubes, this method of the present application can reduce the welding workload of the cross and diagonal bar nodes, reduce the production workload, and reduce costs. In addition, the cross and diagonal bar structural nodes use square steel tubes, and the square tubes can be cut and blanked by modern laser cutting and CNC laser drilling technology to reduce labor consumption. The quality of components manufactured by CNC technology is reliable.

[0045] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A frame-type tower construction node structure, characterized in that: include: A cross bar (1), an oblique bar (2) and a connecting module (3), wherein the cross bar (1) and the oblique bar (2) are both configured as square tubes; The connection module (3) is arranged at the middle position of the crossbar (1), and the four oblique rods (2) are respectively detachably connected to the connection module (3), and the four oblique rods (2) are respectively located in four different directions; Wherein, the connection module (3) comprises a connection plate (31) and a connection portion (32); The connecting plates (31) are respectively attached to the upper and lower sides of the crossbar (1) and are detachably connected; The connecting parts (32) are arranged in four numbers and are arranged in one-to-one correspondence with the four oblique rods (2); the connecting parts (32) are detachably mounted on the connecting plate (31) located on the upper surface of the cross rod (1); and the connecting parts (32) are used to detachably connect the oblique rod (2) and the cross rod (1).

2. The frame-type tower construction node structure according to claim 1, characterized in that: A compensating connecting plate (33) is provided between the connecting plate (31) and the crossbar (1).

3. The frame-type tower construction node structure according to claim 2, characterized in that: A mounting panel (34) is provided between the connecting plate (31) and the connecting portion (32) on the upper surface of the crossbar (1); All the connecting parts (32) can be detachably mounted on the mounting panel (34).

4. The frame-type tower construction node structure according to claim 3, characterized in that: The cross bar (1) and the compensation connecting plate (33) located on the upper surface thereof, the connecting plate (31) and the mounting panel (34) are detachably connected via a plurality of groups of first detachable connecting members (35); The crossbar (1), the compensation connecting plate (33) located on the lower surface thereof, and the connecting plate (31) are detachably connected via a plurality of groups of first detachable connecting members (35).

5. The frame-type tower construction node structure according to claim 3, characterized in that: The connecting portion (32) comprises a first connecting portion (321) and a second connecting portion (322); The first connecting portion (321) is fixed on the mounting panel (34); The second connecting portion (322) is detachably connected to the first connecting portion (321), and one end of the second connecting portion (322) away from the first connecting portion (321) is inserted into the inclined rod (2), and the second connecting portion (322) and the inclined rod (2) are detachably connected.

6. The frame-type tower construction node structure according to any one of claims 1 to 5, characterized in that: It also includes four main tower columns (4) distributed in a rectangular shape, and four cross bars (1) are arranged on the same horizontal plane; Each of the cross bars (1) is arranged between two adjacent main tower columns (4), and two ends of the cross bar (1) are detachably connected to the two adjacent main tower columns (4); One end of each of the inclined rods (2) away from the connection module (3) is detachably connected to the corresponding main tower column (4).

7. The frame-type tower construction node structure according to claim 6, characterized in that: A short-circuited square tube (41) is integrally connected to the outer side wall of the main tower column (4); The short-circuit square tube (41) is provided with a mounting module (5) for detachably mounting the cross bar (1) or the diagonal bar (2).

8. The frame-type tower construction node structure according to claim 7, characterized in that: The mounting module (5) comprises a mounting plate (51), wherein the mounting plate (51) is provided in two pieces; The two mounting plates (51) are respectively attached to the upper and lower sides of the short-circuit square tube (41); The ends of the cross bar (1) or the diagonal bar (2) are respectively inserted between the two mounting plates (51); The two mounting plates (51) jointly connect the end of the cross bar (1) or the diagonal bar (2) and the short-circuit square tube (41) in a detachable manner.

9. The frame-type tower construction node structure according to claim 8, characterized in that: A compensation mounting plate (52) is arranged on the inner side of the mounting plate (51); One end of the compensation mounting plate (52) is fitted to the inner side wall of the short-circuited square tube (41), and a gap is left between the other end of the compensation mounting plate (52) and the mounting plate (51) for the end of the cross bar (1) or the diagonal bar (2) to be inserted.

10. The frame-type tower construction node structure according to claim 9, characterized in that: The short-circuit square tube (41) and the mounting plate (51) and the compensation mounting plate (52) located on the surface thereof are detachably connected via a plurality of sets of second detachable connecting members (53); The mounting plate (51), the compensation mounting plate (52) and the ends of the cross bar (1) or the diagonal bar (2) are also detachably connected via a plurality of sets of second detachable connecting members (53).

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