Supporting and connecting device and antenna framework

Abstract

The invention discloses a supporting and connecting device and an antenna framework, the supporting and connecting device comprises a tower drum, the tower drum is formed by longitudinally and detachably connecting a plurality of first tower drum sections and second tower drum sections, and the drum wall from the tower drum section located at the top to the tower drum section located at the bottom is thickened in sequence; each first tower drum section comprises a first tower drum section body, and a first bearing device and a second bearing device which are connected with the inner wall and the outer wall of the first tower drum section body and are symmetrically arranged; the two ends of the first bearing device and the two ends of the second bearing device which are located on the same side are connected with the horizontal cross arm respectively, and the first bearing device and the second bearing device offset the torque effect brought by the horizontal cross arm in a penetrating type dowel bar mode. According to the supporting and connecting device and the antenna framework disclosed by the invention, the local structure of the supporting main body can be simplified, the weight of the connecting section of the supporting main body is reduced, and the stress of the supporting main body structure is lighter.

Description

Technical Field

[0001] The present invention relates to the technical field of radar antennas, and in particular to a supporting connection device and an antenna frame. Background Art

[0002] Due to the large size of the broadcast antenna array, in order to meet the large-span support in height and width, a large cantilever frame support structure of several tens of meters in length is generally used. Its root is connected to the support body. In order to meet the stability of the large-span structure, the root generally adopts a local reinforcement design, usually by adding a thick frame reinforcement at a local position of the support body, and adding upper and lower diagonal braces for auxiliary reinforcement. It generally involves many types of auxiliary plates and strengthening process means, with high cost, complex structure, heavy weight, and high manufacturing and erection costs.

[0003] Prior art, a utility model patent with patent publication number CN209469534U, a concrete tower, provides a new way of fixing the prestressed tendon connector through the arrangement of the upper tower section and the lower tower section, that is, the prestressed tendon connector can be arranged in the wall of the concrete tower. In this way, the prestressed tendon connector and the prestressed tendon are located on the same vertical line, and the force is more balanced. The structural strength of the upper tower section can be strengthened by the upper reinforcing steel bar group, and the structural strength of the lower tower section can be strengthened by the lower reinforcing steel bar group, which is helpful to offset the stress generated by the prestressed tendon connector. The prior art solves the lateral load generated by the supporting part of the tower in the longitudinal direction, which causes the tower to be subjected to concentrated force and deforms the tower. Summary of the invention

[0004] The technical problem to be solved by the present invention is to simplify the local structure of the supporting body and reduce the weight of the connecting section of the supporting body while making the supporting body structure more lightly stressed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A supporting connection device includes a tower 1200, wherein the tower 1200 is formed by longitudinally detachably connecting a plurality of first tower sections 1210 and second tower sections 1220, and the wall of the tower section gradually becomes thicker from the tower section at the top to the tower section at the bottom;

[0007] Each of the first tower sections 1210 includes a first tower section body 100 and a first load-bearing device 210 and a second load-bearing device 220 connected to the inner and outer walls of the first tower section body 100 and symmetrically arranged; the two ends of the first load-bearing device 210 and the second load-bearing device 220 on the same side are respectively connected to the horizontal cross arm 300, and the first load-bearing device 210 and the second load-bearing device 220 adopt a through-type force transmission rod to offset the torque effect brought by the horizontal cross arm 300.

[0008] Advantages: By utilizing the stress characteristics of the symmetrical structure of the skeleton, the force transmission rod design is adopted to effectively offset the large moment effect brought by the cantilever structure. The structure is simple, the design of reinforcing ribs is small, the processing and manufacturing process is simple, and the manufacturing cost is low.

[0009] In one embodiment of the present invention, the first load-bearing device 210 includes a first force transmission rod 211, a second force transmission rod 212 and a first stiffening ring 213;

[0010] The first dowel rod 211 and the second dowel rod 212 pass through the first tower section body 100 horizontally and symmetrically. Both ends of the first dowel rod 211 and the second dowel rod 212 are located on the outer wall of the first tower section body 100, and both ends are provided with cross arm mounting flanges 214.

[0011] The first stiffening ring 213 is located on the inner wall of the first tower section body 100 and is connected to the first force transmission rod 211 and the second force transmission rod 212 .

[0012] In one embodiment of the present invention, the first bearing device 210 also includes a first diagonal brace mounting member 215, and a plurality of the first diagonal brace mounting members 215 are respectively fixed at both ends of the first force transmission rod 211 and the second force transmission rod 212, and some of the first diagonal brace mounting members 215 pass through the first tower section body 100 and are connected to the first stiffening ring 213.

[0013] In one embodiment of the present invention, the first bearing device 210 also includes a web mounting assembly 216; the web mounting assembly 216 is fixedly located on the outer wall of the first tower section body 100; a plurality of the web mounting assemblies 216 are respectively located between the first force transmission rod 211 and the second force transmission rod 212, and are all on the same horizontal plane as the first stiffening ring 213 on the first tower section body 100.

[0014] In one embodiment of the present invention, the web rod mounting assembly 216 includes a web rod mounting piece 2161 and a web rod stiffening plate 2162; one end of the web rod stiffening plate 2162 is fixed to the web rod mounting piece 2161, and the other end passes through the wall of the first tower section body 100 and is fixed to the first stiffening ring 213.

[0015] In one embodiment of the present invention, the first load-bearing device 210 further includes a plurality of groups of local stiffening plate assemblies 2170 mainly composed of a plurality of local stiffening plates 217, and the number of the local stiffening plate assemblies 2170 is determined according to the number of the web rod mounting assemblies 216;

[0016] A plurality of local stiffeners 217 are centered on the web stiffener 2162 and fixedly connected to the first stiffening ring 213 within the first tower segment body 100. At both ends of the first tower segment body 100 of the first tower segment 1210 located in the middle of the tower 1200, tower installation flanges 218 are provided.

[0017] In an embodiment of the present invention, a second diagonal brace mounting member 1222 is fixedly connected to the second tower segment body 1221 of the second tower segment 1220; the second diagonal brace mounting member 1222 cooperates with the first diagonal brace mounting member 215 to support the horizontal cross arm 300.

[0018] An antenna framework includes the support connection device described above.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: This framework is designed in a form of rigid-flexible coupling. The main structure adopts a rigid structure in the shape of a "丰" character, consisting of a main tower, a horizontal cross arm, a rigid-flexible coupling framework, and an oscillator support framework. The periphery is strengthened by tensioned cables and large struts. To ensure the stiffness matching of the rigid-flexible coupling structure, the wall thickness of the main tower is designed to vary from top to bottom, changing from flexible to rigid. The connected design of the two side horizontal cross arms ensures stress transfer. The unilateral cross arm framework ensures that the overall stiffness gradually decreases from the root to the tip by changing the distribution density and specifications of the steel pipes. The oscillator support adopts a variable cross-section framework design, also ensuring a good transition of the overall stiffness. Through the variable stiffness design of the overall structure from bottom to top and from root to tip, the entire structure is ensured to have high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of a support connection device according to an embodiment of the present invention.

[0021] Figure 2 Schematic diagram of the first tower segment according to an embodiment of the present invention.

[0022] Figure 3 Schematic diagram of the antenna framework according to an embodiment of the present invention.

[0023] Figure 4 Schematic diagram of the oscillator support framework according to an embodiment of the present invention.

[0024] Figure 5 Schematic diagram of the oscillator support framework and the oscillator according to an embodiment of the present invention.

[0025] Figure 6 and Figure 7 Schematic diagram of two oscillator assemblies according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention is further described in conjunction with the accompanying drawings of the specification.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] Example 1

[0029] See also Figures 1 to 3 As shown, the present invention provides a supporting connection device, including a tower 1200, wherein the tower 1200 is formed by longitudinally detachably connecting a plurality of first tower sections 1210 and second tower sections 1220, and the wall of the tower section at the top to the tower section at the bottom gradually becomes thicker. A frame structure is provided on the top tower section to make it lightweight, thereby realizing a variable stiffness design from bottom to top.

[0030] Each first tower section 1210 includes a first tower section body 100 and a first load-bearing device 210 and a second load-bearing device 220 connected to the inner and outer walls of the first tower section body 100 and symmetrically arranged. Both ends of the first load-bearing device 210 and the second load-bearing device 220 on the same side are respectively connected to the horizontal cross arm 300, and the first load-bearing device 210 and the second load-bearing device 220 use a through-type force transmission rod to offset the moment effect brought by the horizontal cross arm 300.

[0031] See also Figures 1 to 3 As shown, in one embodiment of the present invention, the first load-bearing device 210 and the second load-bearing device 220 are symmetrically arranged. To make the description concise, the first load-bearing device 210 is taken as an example, but there is no doubt that the components, connection relationship, position relationship and working principle of the second load-bearing device 220 are the same as those of the first load-bearing device 210. Specifically, the first load-bearing device 210 includes a first force transmission rod 211, a second force transmission rod 212 and a first stiffening ring 213. The first force transmission rod 211 and the second force transmission rod 212 pass through the first tower section body 100 horizontally and symmetrically, and the two ends of the first force transmission rod 211 and the second force transmission rod 212 are located on the outer wall of the first tower section body 100, and a cross arm mounting flange 214 is arranged on both ends. The first tower section body 100 is made of thick steel plate, and its cylinder is perforated, and the first force transmission rod 211 and the second force transmission rod 212 pass through the cylinder wall, so that there are continuous force transmission paths on both sides of the first tower section body 100. The cross arm mounting flange 214 is used to connect with the main pole of the horizontal cross arm.

[0032] The first stiffening ring 213 is located on the inner wall of the first tower section body 100 and is connected to the first force transmission rod 211 and the second force transmission rod 212 , which can improve the axial stability and local torsional strength of the first tower section body 100 .

[0033] The first bearing device 210 also includes a first diagonal brace mounting member 215 , and a plurality of first diagonal brace mounting members 215 are respectively fixed at both ends of the first force transmission rod 211 and the second force transmission rod 212 , and some of the first diagonal brace mounting members 215 pass through the first tower section body 100 and are connected to the first stiffening ring 213 .

[0034] The first bearing device 210 further includes a web mounting assembly 216, which is fixed to the outer wall of the first tower section body 100. The plurality of web mounting assemblies 216 are respectively located between the first force transmission rod 211 and the second force transmission rod 212, and are all on the same horizontal plane as the first stiffening ring 213 on the first tower section body 100.

[0035] The web rod mounting assembly 216 includes a web rod mounting piece 2161 and a web rod stiffening plate 2162. One end of the web rod stiffening plate 2162 is fixed to the web rod mounting piece 2161, and the other end passes through the wall of the first tower section body 100 and is fixed to the first stiffening ring 213. The web rod mounting assembly 216 is used to install the web rods of the horizontal cross arms on both sides, and the web rod stiffening plate 2162 is connected to the first stiffening ring 213 to strengthen the local strength of the installation position of the web rod mounting assembly 216 and release the stress concentration at the connection point.

[0036] The first bearing device 210 also includes a plurality of groups of local stiffening plate assemblies 2170 mainly composed of a plurality of local stiffening plates 217, and the number of the local stiffening plate assemblies 2170 is determined according to the number of the web rod mounting assemblies 216. The plurality of local stiffening plates 217 are fixedly connected to the first stiffening ring 213 in the first tower section body 100 with the web rod stiffening plate 2162 as the center. The plurality of groups of local stiffening plate assemblies 2170 effectively buffer the load concentration problem, release the stress of the local weld, and improve the reliability and service life.

[0037] The first tower section 1210 located in the middle of the tower 1200 has tower mounting flanges 218 at both ends of the first tower section body 100. The tower mounting flanges 218 are used to connect with other tower bodies and are quickly installed using high-strength bolts.

[0038] A second diagonal brace mounting member 1222 is fixedly connected to the second tower section body 1221 of the second tower section 1220 . The second diagonal brace mounting member 1222 cooperates with the first diagonal brace mounting member 215 to support the horizontal cross arm.

[0039] Example 2

[0040] See also Figures 1 to 7As shown, in this embodiment, for Embodiment 1, the present invention further provides an antenna framework, including a tower barrel 1200, and further including a horizontal cross arm 300, a rigid-flexible coupling framework 400, and an oscillator support framework 500. With the tower barrel 1200 as the center, the horizontal cross arm 300, the rigid-flexible coupling framework 400, and the oscillator support framework 500 are symmetrically arranged to achieve force cancellation.

[0041] Taking the longitudinal tower barrel 1200 as the vertical support and the horizontal cross arm 300 as the horizontal support, one end of the horizontal cross arm 300 is connected to the first bearing device 210 and the second bearing device 220, and the other end is fixedly connected to the rigid-flexible coupling framework 400 and the oscillator support framework 500.

[0042] Among them, the horizontal cross arm 300 includes a first-layer horizontal cross arm 310, a second-layer horizontal cross arm 320, and a third horizontal cross arm 330 that are longitudinally connected in sequence on the tower barrel 1200, forming a "rich" - shaped framework form transmission path. Among them, the length of the first-layer horizontal cross arm 310 at the bottom is the smallest. Through the first force transmission rod 211 and the second force transmission rod 212, with the tower barrel 1200 as the center, left-right symmetry is achieved, and the large moment effect brought by each layer of the horizontal cross arm is force-cancelled. The three-layer horizontal cross arm is spliced into a framework form with steel pipes. The steel pipe wall thickness at the root position connected to the tower barrel 1200 is the thickest, and the profile density is the highest, while the wall thickness at the end is thin. That is, for a single-sided cross arm itself, from the root to the tip, the diameter and thickness of the spliced steel pipe gradually decrease, and the stiffness gradually weakens.

[0043] The number of the rigid-flexible coupling frameworks 400 is the same as that of the horizontal cross arms 300, and includes a first reflector support 410, a second reflector support 420, and a third reflector support 430 that are sequentially connected to the first-layer horizontal cross arm 310, the second-layer horizontal cross arm 320, and the third horizontal cross arm 330 in sequence. It also includes a first cable 440 connected to all reflector supports, a second cable 450 connected to the horizontal cross arm 300, and a cross arm support 460. The rigid-flexible coupling framework 400 can form a rigid-flexible coupling closed stress surface.

[0044] The first reflective curtain support 410, the second reflective curtain support 420 and the third reflective curtain support 430 are respectively located at the ends of the three-layer horizontal crossarm 300, and the frame structure on the ends of the first reflective curtain support 410, the second reflective curtain support 420 and the third reflective curtain support 430 and the top tower section is provided with a tensioning device. The first cable 440 is sequentially connected with the tensioning device on the frame structure of the first reflective curtain support 410, the second reflective curtain support 420 and the third reflective curtain support 430 to the top tower section to achieve a flexible connection. One end of a plurality of second cables 450 is respectively fixed to the tower 1200, and the other end is respectively fixed to the ends of the second-layer horizontal crossarm 320 and the third horizontal crossarm 330, so as to pull the second-layer horizontal crossarm 320 and the third horizontal crossarm 330. One end of the multiple cross arm supports 460 is respectively connected to the first diagonal brace mounting member 215 and the second diagonal brace mounting member 1222 on the tower 1200, and the other end is respectively fixed to the ends of the second horizontal cross arm 320 and the third horizontal cross arm 330 to support the second horizontal cross arm 320 and the third horizontal cross arm 330.

[0045] The vibrator interface surface of the vibrator support frame 500 includes a first connecting rod 510, a second connecting rod 520 and a vibrator connection flange 530. One end of a pair of first connecting rods 510 is fixedly connected to the main structure of the vibrator support frame 500, and the two first connecting rods 510 are parallel in the horizontal direction. The second connecting rod 520 is an inclined rod, and the pair of second connecting rods 520 are parallel in the inclined direction, and one end of the pair of second connecting rods 520 is hinged to the main structure of the vibrator support frame 500. Among them, an end connection flange 540 is provided at the end of each of the first connecting rod 510 and the second connecting rod 520 for docking with the vibrator connection flange 530.

[0046] A pair of vibrator connection flanges 530 are respectively connected to the other ends of a pair of first connection rods 510 and a pair of second connection rods 520. A first mounting hole and a second mounting hole are set on the vibrator connection flange 530, and one side of the vibrator connection flange 530 is set at a right angle, and the first mounting hole is close to the right angle side. When assembled and used, the connection line of the center points of two adjacent first mounting holes is parallel to the first connection rod 510, and the connection line of the center points of two adjacent second mounting holes is parallel to the second connection rod 520, which is used to play a role in vertical positioning of the vibrator.

[0047] Compared with the traditional single-sided flange connection, the joint of the vibrator support frame 500 is connected by two-sided four-point connection, which greatly improves the overall rigidity and firmness. The vibrator 600 is connected with the first connecting rod 510 and the second connecting rod 520 to ensure the rigidity matching of the overall structure, ensure the durability and fatigue resistance of the vibrator 600 during long-term service, and greatly improve its service life. The connecting line of the center points of the two adjacent first mounting holes is parallel to the first connecting rod 510 to ensure that the assembled array surface has high verticality and flatness after the vibrator is assembled, thereby improving the installation accuracy. The use of two hinged second connecting rods 520 for repeated tightening can not only improve the assembly efficiency, but also increase the overall strength. The entire vibrator support frame 500 adopts a connecting rod splicing form, which is low in cost, light in weight, easy to install, high in positioning accuracy and reasonable in rigidity design.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0049] The above-described embodiments merely represent implementation methods of the invention. The protection scope of the present invention is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements may be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A supporting connection device, characterized in that: The tower (1200) is formed by longitudinally detachably connecting a plurality of first tower sections (1210) and second tower sections (1220), and the wall of the tower section gradually becomes thicker from the tower section at the top to the tower section at the bottom; Each of the first tower sections (1210) comprises a first tower section body (100) and a first load-bearing device (210) and a second load-bearing device (220) which are connected to the inner and outer walls of the first tower section body (100) and are symmetrically arranged; the two ends of the first load-bearing device (210) and the second load-bearing device (220) on the same side are respectively connected to the horizontal cross arm (300), and the first load-bearing device (210) and the second load-bearing device (220) adopt a through-type force transmission rod form to offset the torque effect brought by the horizontal cross arm (300).

2. The supporting connection device according to claim 1, characterized in that: The first bearing device (210) comprises a first force transmission rod (211), a second force transmission rod (212) and a first stiffening ring (213); The first dowel rod (211) and the second dowel rod (212) pass through the first tower section body (100) in a horizontal and symmetrical manner, and both ends of the first dowel rod (211) and the second dowel rod (212) are located on the outer wall of the first tower section body (100), and both ends are provided with cross arm mounting flanges (214); The first stiffening ring (213) is located on the inner wall of the first tower section body (100) and is connected to the first force transmission rod (211) and the second force transmission rod (212).

3. The supporting connection device according to claim 2, characterized in that: The first bearing device (210) also includes a first diagonal brace mounting member (215), and a plurality of the first diagonal brace mounting members (215) are respectively fixed at both ends of the first force transmission rod (211) and the second force transmission rod (212), and some of the first diagonal brace mounting members (215) pass through the first tower section body (100) and are connected to the first stiffening ring (213).

4. The supporting connection device according to claim 2, characterized in that: The first bearing device (210) also includes a web mounting assembly (216); the web mounting assembly (216) is fixedly located on the outer wall of the first tower section body (100); a plurality of web mounting assemblies (216) are respectively located between the first force transmission rod (211) and the second force transmission rod (212), and are all on the same horizontal plane as the first stiffening ring (213) on the first tower section body (100).

5. The supporting connection device according to claim 4, characterized in that: The web rod mounting assembly (216) comprises a web rod mounting piece (2161) and a web rod stiffening plate (2162); one end of the web rod stiffening plate (2162) is fixed to the web rod mounting piece (2161), and the other end passes through the wall of the first tower section body (100) and is fixed to the first stiffening ring (213).

6. The supporting connection device according to claim 5, characterized in that: The first load-bearing device (210) further comprises a plurality of groups of local stiffening plate assemblies (2170) mainly composed of a plurality of local stiffening plates (217), and the number of the local stiffening plate assemblies (2170) is determined according to the number of the web rod mounting assemblies (216); A plurality of local stiffening plates (217) are fixedly connected to the first stiffening ring (213) in the first tower section body (100) with the web stiffening plate (2162) as the center.

7. The supporting connection device according to claim 1, characterized in that: The first tower section (1210) located in the middle of the tower (1200) has tower mounting flanges (218) disposed at both ends of the first tower section body (100).

8. The supporting connection device according to claim 3, characterized in that: A second diagonal brace mounting member (1222) is fixedly connected to the second tower section body (1221) of the second tower section (1220); the second diagonal brace mounting member (1222) cooperates with the first diagonal brace mounting member (215) to support the horizontal cross arm (300).

9. An antenna frame, characterized in that: It comprises the supporting and connecting device described in any one of claims 1-8.

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