Double-rope tower structure

Abstract

The double-rope tower structure comprises a main rod structure, a first seamless steel pipe forms a triangular section, a cross-shaped double-shear connecting structure connected with a first seamless steel pipe web member is welded to the upper portion of a main rod, a first flange plate is arranged at the top of the main rod, and a second flange plate is arranged at the bottom of the main rod; the pull lug combination is arranged between the main rods, a triangular section is formed by a second seamless steel pipe, and the pull lug combination comprises a pull lug plate, a lug shaft and a stiffening plate; and the steel plate combination is welded on two sides of the main rod body in a surrounding manner, and the steel plate combination adopts a hollow design and is used for arranging a crawling ladder. By applying the structure, a layer of cords of the mast can be arranged in a mode of arranging two cords in all directions, and the torsional rigidity of the mast is improved through a certain moment of force.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to a long double-fiber rope tower structure. Background Art

[0002] Long-wave antennas are mainly used for communications in lower frequency bands. Such antennas are generally large antenna systems with long conductors. The length and height of the conductors will affect the frequency characteristics and radiation pattern of the antennas. Currently, the installation height of large long-wave antennas can reach more than 300 meters. The commonly used method for supporting such towering conductors is to use a single mast or multiple masts to form a mast group to support the conductors. The mast structure is composed of a slender shaft and fiber ropes stretched diagonally along the height. In order to achieve ultra-high erection requirements and have a strong load capacity, the mast shaft is usually made of steel structure, and the mast is assembled on-site using multi-layer tower sections.

[0003] As long-wave antennas require increasingly higher masts for laying conductors, in order to meet mast design specifications, the corresponding tower sections of masts are becoming wider and wider. The mast section is generally a triangular or quadrilateral section consisting of three or four steel pipes. Multiple layers of fiber ropes are arranged along the height direction of the mast to ensure that the mast is upright and stable. In order to ensure the torsional rigidity of the mast, it is advisable to use a layer of fiber ropes with unidirectional double fiber ropes when designing the mast structure. The axis of the fiber rope does not pass through the axis of the mast body. The torsional rigidity of the mast is increased through a certain torque, so that the mast maintains a certain torsional rigidity in the initial state, reduces the torsional vibration of the mast under wind load, and improves fatigue strength.

[0004] At present, in order to realize the double-fiber rope connection structure of the communication or high-voltage transmission line mast tower section, the double-fiber rope arrangement of the mast is realized by directly welding the double-fiber rope components on the main material of the pole body. However, this method has two disadvantages: first, it will cause the mast to be subjected to concentrated force, which is prone to deformation and affects the service life; second, for the long-wave antenna that requires a mast height of more than 300 meters, this method cannot meet the strength requirements at all and cannot achieve the purpose of improving torsional stiffness.

[0005] In view of this, how to provide a double-fiber rope tower section structure for a long-wave antenna mast to meet the requirement of improving the torsional stiffness of the long-wave antenna mast has become a technical problem that urgently needs to be solved. Summary of the invention

[0006] The embodiment of the present application provides a double-fiber rope tower structure, which is used to solve the problem that the current mast has low torsional stiffness and does not meet the strength requirements of a tall mast and facilitates transportation and hoisting during mast assembly.

[0007] In a first aspect of an embodiment of the present application, a double-fiber rope tower structure is provided, comprising:

[0008] The main rod structure has a triangular cross section formed by a first seamless steel pipe, a cross double shear connection structure connected to the web of the first seamless steel pipe is welded on the upper part of the main rod, a first flange is provided on the top of the main rod, and a second flange is provided on the bottom of the main rod;

[0009] A lug assembly is arranged between the main rods and is formed of a second seamless steel tube to form a triangular cross section, including a lug plate, a trunnion and a stiffening plate;

[0010] The steel plate combination is welded around both sides of the main pole body, and the steel plate combination adopts a hollow design and is used for arranging a ladder.

[0011] Optionally, stiffening ribs are welded between the first flange and the first seamless steel pipe, and between the second flange and the first seamless steel pipe to form a rigid flange structure, wherein the rigid flange structure is a tension and compression type.

[0012] Optionally, the first flange and the first seamless steel pipe, and the second flange and the first seamless steel pipe, are welded by double welds, wherein the first flange and the second flange are provided with circular holes for connecting the first seamless steel pipe with the first flange and the second flange.

[0013] Optionally, lug plates are welded on both sides of the second seamless steel tube shaft in the lug assembly, and an ear shaft is welded on the belly of the lug plate, and the ear shaft is used to connect with the fiber rope lug plate through a pin shaft.

[0014] Optionally, a stiffening plate is provided on the pull ear plate, wherein the stiffening plates are horizontally arranged at the upper part, the middle part and the lower part of the pull ear plate respectively.

[0015] Optionally, the steel plate combination includes an upper plate, an intermediate supporting structure and a lower plate.

[0016] Optionally, the upper plate is welded into a hexagonal structure, and six circular holes are respectively provided at the six corners corresponding to the hexagonal structure, wherein the circular holes are used for welding with the first seamless steel pipe in the main rod structure or the second seamless steel pipe in the pull ear assembly;

[0017] The intermediate support structure comprises a first steel plate, a second steel plate, a third steel plate and a third seamless steel pipe, wherein the first steel plate, the second steel plate, the third steel plate and the third seamless steel pipe are connected to the upper plate and the lower plate respectively;

[0018] The interior of the lower plate is hollow and is used for arranging a ladder.

[0019] The present application provides a double-fiber rope tower structure, including: a main pole structure, which is formed of a first seamless steel pipe with a triangular cross-section, a cross double shear connection structure connected to the web of the first seamless steel pipe is welded on the upper part of the main pole, a first flange is arranged on the top of the main pole, and a second flange is arranged on the bottom of the main pole; a pull ear assembly is arranged between the main poles, which is formed of a second seamless steel pipe with a triangular cross-section, including a pull ear plate, a pull ear shaft and a stiffening plate; a steel plate assembly is welded around both sides of the main pole body, and the steel plate assembly adopts a hollow design for arranging a ladder.

[0020] By applying the double-fiber rope tower structure provided in the embodiment of the present application, on the one hand, it can be achieved that a layer of fiber ropes on the mast is arranged in an isotropic double-fiber rope form, and the axis of the fiber rope does not pass through the axis of the mast body, thereby improving the torsional stiffness of the mast through a certain moment; on the other hand, for large masts in the long-wave antenna field, it can not only meet the strength and stiffness requirements, but also make the mast evenly stressed and do not produce a large stress concentration; on the other hand, for masts with a larger tower body section, it can not only achieve rapid installation with the mast body, but also achieve volume, quality and other aspects to meet the requirements of transportation and lifting.

[0021] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, which can be implemented in accordance with the contents of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0023] Figure 1 A schematic structural diagram of a double-fiber rope tower structure provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of a top view of a double-fiber rope tower structure provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of a main pole structure of a double-fiber rope tower structure provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of a pull ear assembly structure of a double-fiber rope tower structure provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of a top view structure of a pull ear assembly of a double-fiber rope tower structure provided in an embodiment of the present application;

[0028] Figure 6 A schematic diagram of a steel plate assembly structure of a double-fiber rope tower structure provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of a steel plate assembly structure of a double-fiber rope tower structure provided in an embodiment of the present application with upper and lower plates removed;

[0030] Figure 8 A schematic diagram of the upper and lower plate structures of a steel plate assembly of a double-fiber rope tower structure provided in an embodiment of the present application;

[0031] Among them, the main rod structure-1; the ear assembly-2; the steel plate assembly-3; the cross double shear connection structure-4; the first seamless steel pipe-5; the first / second flange-6; the stiffening rib-7; the second seamless steel pipe-8; the ear plate-9; the ear shaft-10; the first transverse horizontal stiffening plate-11; the second transverse horizontal stiffening plate-12; the upper plate-13; the lower plate-14; the first steel plate-15; the second steel plate-16; the third steel plate-17; the third seamless steel pipe-18. DETAILED DESCRIPTION

[0032] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] As the design height of long-wave antenna masts becomes higher and higher, the size of the masts also increases accordingly. In order to prevent the masts from twisting along the axis of the tower body, the current requirement is that when designing the mast structure, one layer of fiber ropes should be made of isotropic double fiber ropes, and the axis of the fiber ropes should not pass through the axis of the mast body. The purpose is to increase the torsional stiffness of the mast through a certain torque.

[0034] Therefore, it is necessary to design a double-fiber-rope tower section structure for long-wave antenna masts to meet the requirements of improving torsional stiffness of long-wave antenna masts. In addition, due to the high height and large size of long-wave antenna masts, the double-fiber-rope tower section must also meet the requirements of reasonable fiber rope arrangement so that the mast tower body is evenly stressed and does not produce large concentrated stress. Due to the large size of long-wave antenna masts, the double-fiber-rope tower section structure also requires that the weight and volume should not be too large, so that it is easy to transport and can meet the hoisting conditions during installation.

[0035] The embodiment of the present application provides a double-fiber-rope structure tower section for a triangular-section mast, which is installed between two standard tower sections of a mast main pole, and the upper and lower three main poles of the double-fiber-rope tower section are connected to the upper and lower standard tower sections with flanges. In order to meet the strength requirements of a tall mast, the double-fiber-rope mast tower section is welded with steel plates between the three main poles, and then a set of double-fiber-rope pull ear assemblies are welded on each of the three sides.

[0036] See also Figure 1 and Figure 2 , Figure 1 A schematic structural diagram of a double-fiber rope tower structure provided in an embodiment of the present application; Figure 2 A schematic diagram of a top view of a double-fiber rope tower structure provided in an embodiment of the present application.

[0037] like Figure 1 and Figure 2 As shown, the double-fiber rope tower structure is formed by welding steel. The main body is three main pole structures 1 with flanges on the top and bottom. The two sides of the pole body are welded with steel plates 3 to form a double-fiber rope tower section platform. The double-fiber rope pull ear combination 2 is welded between the three main poles. The steel plate combination 3 inside the double-fiber rope tower section adopts a hollow design, which is used to arrange facilities such as ladders to facilitate people to go up and down. The cross double shear connection structure 4 connected to the standard tower section belly rod is welded on the upper part of the main pole 1 to improve the connection strength with the overall mast tower body.

[0038] Specifically, the main rod structure 1 has a triangular cross-section formed by a first seamless steel pipe 5, a cross double shear connection structure 4 connected to the web of the first seamless steel pipe 5 is welded on the upper part of the main rod, a first flange 6 is arranged on the top of the main rod, and a second flange 6 is arranged on the bottom of the main rod.

[0039] The lug assembly 2 is arranged between the main rods, and is formed of a second seamless steel tube 8 to form a triangular cross section, including a lug plate 9, a trunnion 10 and a stiffening plate;

[0040] The steel plate assembly 3 is welded around both sides of the main rod body. The steel plate assembly 3 adopts a hollow design and is used for arranging a ladder.

[0041] See also Figure 3 , Figure 3 This is a schematic diagram of the main pole structure of a double-fiber rope tower structure provided in an embodiment of the present application. Figure 3As shown, the main rod structure 1 is mainly composed of the first seamless steel pipe 5, the first / second flange 6 and the cross double shear structure 4. The seamless steel pipe 5 is made of the same specification steel as the upper and lower standard tower sections. Flanges are welded on the upper and lower parts of the seamless steel pipe respectively, and stiffening ribs 7 are welded between the flange and the steel pipe to form a rigid flange structure. The flange and the steel pipe are welded with double welds, that is, a circular hole with a diameter slightly larger than the diameter of the steel pipe is opened in the middle of the flange, and the steel pipe is inserted into the position where the thickness of the flange is half, and welded with two inner and outer fillet welds. The flange configuration is a tension and compression type, and the pressure is transmitted through the flange plate surface contact, the plate is bent, and the weld is sheared.

[0042] Specifically, stiffening ribs 7 are welded between the first flange 6 and the first seamless steel pipe 5, and between the second flange 6 and the first seamless steel pipe 5, to form a rigid flange structure, wherein the rigid flange structure is a tension and compression type.

[0043] More specifically, the first flange 6 and the first seamless steel pipe 5, as well as the second flange 6 and the first seamless steel pipe 5, are welded by double welds, wherein the first flange 6 and the second flange 6 are provided with circular holes for connecting the first seamless steel pipe 5 with the first flange 6 and the second flange 6.

[0044] See also Figure 4 and Figure 5 , Figure 4 A schematic diagram of a pull ear assembly structure of a double-fiber rope tower structure provided in an embodiment of the present application; Figure 5 A schematic diagram of the top view of a pull ear assembly of a double-fiber rope tower structure provided in an embodiment of the present application.

[0045] like Figure 4 and Figure 5 As shown, the lug assembly 2 is mainly composed of a second seamless steel tube 8, a lug plate 9, an ear shaft 10 and stiffening plates 11 and 12. The second seamless steel tube 8 is made of the same specification steel as the main rod. Two lug plates 9 are welded on both sides of the second seamless steel tube 8. An ear shaft 10 is welded on the belly of the lug plate 9 to connect with the fiber rope lug plate through a pin. The thickness of the ear shaft 10 must meet certain strength requirements to avoid local compression damage to the lug plate hole caused by large fiber rope tension. In addition, in order to ensure the out-of-plane stability and fatigue stress performance of the lug plate, the first transverse horizontal stiffening plate 11 and the second transverse horizontal stiffening plate 12 are respectively arranged at the middle and lower positions of the lug plate for reinforcement, and the lug plate 9, the seamless steel tube and the lug platform form a complete force-bearing whole, so that the mast tower body is evenly stressed.

[0046] Specifically, lug plates 9 are welded on both sides of the shaft of the second seamless steel tube 8 in the lug assembly 2, and an ear shaft 10 is welded on the belly of the lug plate 9. The ear shaft 10 is used to connect with the fiber rope lug plate through a pin shaft.

[0047] More specifically, the lug plate 9 is provided with stiffening plates, wherein the stiffening plates are horizontally arranged at the upper part, the middle part and the lower part of the lug plate 9 , respectively, and include a first horizontal stiffening plate 11 and a second horizontal stiffening plate 12 .

[0048] See also Figure 6 , Figure 7 and Figure 8 , Figure 6 A schematic diagram of a steel plate assembly structure of a double-fiber rope tower structure provided in an embodiment of the present application; Figure 7 A schematic diagram of a steel plate assembly structure of a double-fiber rope tower structure provided in an embodiment of the present application with upper and lower plates removed; Figure 8 A schematic diagram of the upper and lower plate structures of a steel plate combination of a double-fiber rope tower structure provided in an embodiment of the present application.

[0049] like Figure 6 , 7 As shown in Figures 1 and 8, the steel plate assembly 3 is composed of an upper plate 13, a lower plate 14 and an intermediate support structure. Three upper plates 13 are welded together to form a hexagonal structure, and circular holes are dug at the six corners to be welded to the seamless steel pipe of the main rod or pull ear assembly 2. The intermediate support reinforcement structure is composed of a first steel plate 15, a second steel plate 16, a third steel plate 17 and a third seamless steel pipe 18. The steel plates and seamless steel pipes are welded to the upper and lower plates 14 to form a whole, and at the same time meet a certain strength of compression and tension resistance. The lower plate 14 is made of a whole piece of steel plate. In order to reduce the weight of the overall structure and arrange facilities such as up and down ladders, the lower plate 14 is dug with holes inside.

[0050] Specifically, the steel plate combination 3 includes an upper plate 13 , an intermediate supporting structure and a lower plate 14 .

[0051] More specifically, the upper plate 13 is welded into a hexagonal structure, and six circular holes are respectively arranged at the six corners corresponding to the hexagonal structure, wherein the circular holes are used to be welded with the first seamless steel tube 5 in the main rod structure 1, or the second seamless steel tube 8 in the pull ear combination 2; the intermediate supporting structure includes a first steel plate 15, a second steel plate 16, a third steel plate 17 and a third seamless steel tube 18, and the first steel plate 15, the second steel plate 16, the third steel plate 17 and the third seamless steel tube 18 are respectively connected to the upper plate 13 and the lower plate 14; the interior of the lower plate 14 adopts a hollow design for arranging a ladder.

[0052] In the embodiment of the present application, the main pole, the pull ear assembly 2 and the steel plate assembly 3 are welded to form a complete double-fiber rope tower section structure, so as to realize the need to arrange double-fiber ropes at a certain layer of the mast and meet the requirement of improving the torsional stiffness of the mast. The double-fiber rope tower section is designed with the same form of steel as the mast tower body. Through reasonable layout, it can not only meet the requirements of quick connection with the main mast, but also achieve the goal of uniform force on the whole mast. The double-fiber rope tower sections are all welded and can be directly hoisted during installation. For long-wave antenna masts with larger cross-sections, the separately designed double-fiber rope tower sections avoid the problems of large weight and volume, and are convenient for transportation and hoisting.

[0053] The embodiment of the present application provides a double-fiber rope tower structure, which realizes that a certain layer of fiber ropes of the mast adopts isotropic double-fiber ropes, so that the mast maintains a certain torsional stiffness in the initial state, reduces the torsional vibration of the mast under wind load, and improves fatigue resistance; for large masts in the long-wave antenna field, through reasonable layout, the mast can be uniformly stressed and no large stress concentration is generated; for masts with larger tower cross-sections, it can not only achieve rapid installation with the mast body, but also meet the requirements of transportation and lifting in terms of volume and quality.

[0054] By applying the double-fiber rope tower structure provided in the embodiment of the present application, it can be achieved that a layer of fiber ropes on the mast is arranged in an isotropic double-fiber rope form, and the axis of the fiber rope does not pass through the axis of the mast body, thereby improving the torsional stiffness of the mast through a certain moment; for large masts in the long-wave antenna field, it can not only meet the strength and stiffness requirements, but also make the mast evenly stressed and do not produce a large stress concentration; for masts with a larger tower body section, it can not only achieve rapid installation with the mast body, but also achieve volume, quality and other aspects to meet the requirements of transportation and lifting.

[0055] It should be noted that the above is a description of a specific embodiment of the present specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the embodiments of the present specification.

[0056] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0057] The preferred embodiments of this specification disclosed above are only used to help explain this specification. The optional embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the embodiments of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the embodiments of this specification, so that technicians in the relevant technical field can understand and use this specification well. This specification is limited only by the claims and their full scope and equivalents.

Claims

1. A double-fiber rope tower structure, characterized in that: include: The main rod structure has a triangular cross section formed by a first seamless steel pipe, a cross double shear connection structure connected to the web of the first seamless steel pipe is welded on the upper part of the main rod, a first flange is provided on the top of the main rod, and a second flange is provided on the bottom of the main rod; A lug assembly is arranged between the main rods and is formed of a second seamless steel tube to form a triangular cross section, including a lug plate, a trunnion and a stiffening plate; The steel plate combination is welded around both sides of the main pole body, and the steel plate combination adopts a hollow design and is used for arranging a ladder.

2. The double-fiber rope tower structure according to claim 1, characterized in that: Stiffening ribs are welded between the first flange and the first seamless steel pipe, and between the second flange and the first seamless steel pipe to form a rigid flange structure, wherein the rigid flange structure is a tension and compression type.

3. The double-fiber rope tower structure according to claim 1, characterized in that: The first flange and the first seamless steel pipe, as well as the second flange and the first seamless steel pipe, are welded by double welds, wherein the first flange and the second flange are provided with circular holes for connecting the first seamless steel pipe with the first flange and the second flange.

4. The double-fiber rope tower structure according to claim 1, characterized in that: In the lug assembly, lug plates are welded on both sides of the second seamless steel tube shaft, and an ear shaft is welded on the belly of the lug plate. The ear shaft is used to connect with the fiber rope lug plate through a pin shaft.

5. The double-fiber rope tower structure according to claim 4, characterized in that: The pull ear plate is provided with a stiffening plate, wherein the stiffening plates are horizontally arranged at the upper part, the middle part and the lower part of the pull ear plate respectively.

6. The double-fiber rope tower structure according to claim 1, characterized in that: The steel plate combination comprises an upper plate, an intermediate supporting structure and a lower plate.

7. The double-fiber rope tower structure according to claim 6, characterized in that: The upper plate is welded into a hexagonal structure, and six circular holes are respectively provided at the six corners corresponding to the hexagonal structure, wherein the circular holes are used for welding with the first seamless steel pipe in the main rod structure or the second seamless steel pipe in the pull ear assembly; The intermediate support structure comprises a first steel plate, a second steel plate, a third steel plate and a third seamless steel pipe, wherein the first steel plate, the second steel plate, the third steel plate and the third seamless steel pipe are connected to the upper plate and the lower plate respectively; The interior of the lower plate is hollow and is used for arranging a ladder.

Images