An antenna base

Abstract

The embodiment of the present application discloses an antenna seat, comprising: a flange; two support arms symmetrically arranged on the bottom surface of the flange; a base rotatably connected to the flange; the base comprises: a connecting portion rotatably connected to the flange; a fixing portion surrounding the outer ring of the connecting portion and connected and fixed to the aircraft body; a supporting portion for connecting the fixing portion and the connecting portion; a plurality of first extension portions extending from the upper end of the outer side wall of the connecting portion in the direction of the fixing portion; a plurality of second extension portions respectively corresponding to the plurality of first extension portions extending from the lower end of the outer side wall of the connecting portion in the direction of the fixing portion; a plurality of first extension portions and a plurality of second extension portions jointly form a supporting portion. The supporting portion on the base is provided with the first extension portion and the second extension portion, so that a hollow structure is formed between the first extension portion and the second extension portion, which not only saves materials but also greatly reduces the weight of the supporting portion; and the base can also meet the rigidity and strength requirements of the base during use.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical equipment, and more specifically, to an antenna seat. Background Art

[0002] Radar is one of the essential equipment on an aircraft, and is usually supported by an antenna mount;

[0003] During the use of the radar, the antenna base needs to withstand three types of loads: fixed-frequency loads excited by the carrying aircraft, such as propeller motion excitation; random loads during flight; and impact loads during landing.

[0004] However, although the existing antenna base can withstand the above three loads, it cannot meet the requirements of light weight of the antenna base while meeting the rigidity and strength of the antenna base; it cannot meet the requirements of rigidity and strength of the antenna base while meeting the requirements of light weight of the antenna base.

[0005] Therefore, in order to overcome the defects of the prior art, it is necessary to provide an antenna seat. Summary of the invention

[0006] An object of the present invention is to provide an antenna seat to solve at least one of the problems existing in the prior art.

[0007] In order to achieve at least one of the above purposes, the present application adopts the following technical solutions:

[0008] The present application provides an antenna base, comprising: a flange;

[0009] Two support arms symmetrically arranged on the bottom surface of the flange;

[0010] A base rotatably connected to the flange;

[0011] The base comprises:

[0012] A connecting portion rotatably connected to the flange;

[0013] A fixing portion surrounding the outer ring of the connecting portion and connected and fixed to the aircraft body;

[0014] A supporting portion for connecting the fixing portion and the connecting portion;

[0015] A plurality of first extension portions are extended from the upper end of the outer side wall of the connecting portion toward the fixing portion;

[0016] A plurality of second extension portions respectively corresponding to the plurality of first extension portions are extended from the lower end of the outer side wall of the connecting portion toward the direction of the fixing portion;

[0017] The plurality of first extension portions and the plurality of second extension portions together form the support portion.

[0018] Optionally, the plurality of first extension portions overlap with the plurality of second extension portions respectively corresponding to each other at one end close to the fixing portion;

[0019] One end of two adjacent first extension parts close to the connecting part are connected and fixed;

[0020] One end of two adjacent second extension parts close to the connecting part is connected and fixed.

[0021] Optionally, the width of the first extension portion gradually decreases from an end close to the connecting portion to an end close to the fixing portion;

[0022] The width of the second extension portion gradually decreases from an end close to the connecting portion to an end close to the fixing portion.

[0023] Optionally, the base is mounted at the top center of the flange through a rotating assembly;

[0024] The rotating assembly comprises:

[0025] A first rotating gear connected and fixed to the top surface of the flange;

[0026] a second rotating gear disposed at the bottom of the base and meshing with the first rotating gear;

[0027] The first rotating gear is connected to the base through a bearing.

[0028] Optionally, the antenna base further includes:

[0029] A power member for driving the second rotating gear to rotate;

[0030] A bearing portion is formed by extending outward from the bottom surface of the connecting portion of the base to bear and fix the power member;

[0031] The projection of the bearing portion in the horizontal plane is located between the projections of two adjacent first extending portions or second extending portions in the horizontal plane.

[0032] Optionally, the bottom of the flange protrudes outward to form a protrusion with a symmetrical structure;

[0033] The center position of the protruding portion is coaxially arranged with the center position of the flange.

[0034] Optionally, the two support arms are symmetrically arranged on the protruding portions.

[0035] Optionally, the bottom of the support arm includes a mounting hole for mounting an antenna load;

[0036] The outer periphery of the mounting hole includes a plurality of fixing holes for fixing the antenna load.

[0037] Optionally, a weight-reducing groove is further provided above the mounting hole on the support arm;

[0038] The bottom of the weight-reducing groove is provided with a through weight-reducing hole, and the side wall of the weight-reducing groove is provided with reinforcing ribs.

[0039] The beneficial effects of this application are as follows:

[0040] In response to the problems existing in the current prior art, the present application provides an antenna base, which is fixed to an aircraft by a fixing portion of the base, so that the flange can rotate relative to the aircraft body; the support portion on the base is provided with a first extension portion and a second extension portion, so that a hollow structure is formed between the first extension portion and the second extension portion, which not only saves materials but also greatly reduces the weight of the support portion; and the base can also meet the rigidity and strength requirements of the base during use.

[0041] The design of the weight-reducing groove and the weight-reducing hole on the support arm can reduce the weight of the support arm without affecting its rigidity and strength, thereby further reducing the weight of the antenna base provided in the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0043] Figure 1 A schematic diagram of the overall structure of an antenna base in an embodiment of the present application is shown.

[0044] Figure 2 A schematic diagram showing the structure of the base in the antenna base in one embodiment of the present application Figure 1 .

[0045] Figure 3 A schematic diagram showing the structure of the base in the antenna base in one embodiment of the present application Figure 2 .

[0046] Figure 4 A three-dimensional cross-sectional view of a base in an antenna base in one embodiment of the present application is shown.

[0047] Figure 5 A schematic structural diagram of a side of a flange facing the base in an antenna base in an embodiment of the present application is shown.

[0048] Figure 6 A schematic structural diagram of a side of a flange in an antenna base facing a support arm in an embodiment of the present application is shown.

[0049] Figure 7A schematic diagram showing the structure of the support arm in the antenna base in one embodiment of the present application Figure 1 .

[0050] Figure 8 A schematic diagram showing the structure of the support arm in the antenna base in one embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0051] In the following description, for the purpose of explanation, in order to provide a thorough understanding of one or more embodiments, numerous specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details.

[0052] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0053] It should also be noted that, in the description of the present application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the statement "comprise one..." do not exclude the presence of other identical elements in the process, method, article or equipment including the elements.

[0054] In order to solve the problems existing in the prior art, an embodiment of the present application provides an antenna seat, such as Figure 1-8As shown, it includes: a flange 1; two support arms 2 symmetrically arranged on the bottom surface of the flange 1; a base 3 rotatably connected to the flange 1; the base 3 includes: a connecting portion 31 rotatably connected to the flange 1; a fixing portion 32 surrounding the outer circle of the connecting portion 31 and connected and fixed to the aircraft body; a supporting portion for connecting the fixing portion 32 and the connecting portion 31; a plurality of first extension portions 331 are extended from the upper end of the outer side wall of the connecting portion 31 in the direction of the fixing portion 32; a plurality of second extension portions 332 respectively corresponding to the plurality of first extension portions 331 are extended from the lower end of the outer side wall of the connecting portion 31 in the direction of the fixing portion 32; the plurality of first extension portions 331 and the plurality of second extension portions 332 together form the supporting portion.

[0055] In the above embodiment, the base 3 is fixed to the aircraft through the fixing portion 32 of the base 3, so that the flange 1 can rotate relative to the aircraft body; the support portion on the base 3 is provided with the first extension portion 331 and the second extension portion 332, so that a hollow structure is formed between the first extension portion 331 and the second extension portion 332, which not only saves materials but also greatly reduces the weight of the support portion; and the base 3 can also meet the rigidity and strength requirements of the base 3 during use.

[0056] Specifically, the outer periphery of the fixing portion 32 includes a plurality of connecting holes 321, and the connecting members pass through the connecting holes 321 to fix the fixing portion 32 to the aircraft body; here, the connecting holes 321 can be bolt holes, and the connecting members can also be bolts, without limitation.

[0057] In a specific embodiment, the plurality of first extensions 331 overlap with the corresponding plurality of second extensions 332 at one end close to the fixing portion 32; two adjacent first extensions 331 are connected and fixed at one end close to the connecting portion 31; and two adjacent second extensions 332 are connected and fixed at one end close to the connecting portion 31. In this way, the plurality of first extensions 331 and the plurality of second extensions 332 together form a whole, which can make the connection between the connecting portion 31 and the fixing portion 32 more stable, and further improve the supporting strength and rigidity of the base 3.

[0058] In a specific embodiment, the width of the first extension portion 331 gradually decreases from one end close to the connection portion 31 to one end close to the fixing portion 32; the width of the second extension portion 332 gradually decreases from one end close to the connection portion 31 to one end close to the fixing portion 32. Since the flange 1 is connected to the connection portion 31, the load of the support portion on the end close to the fixing portion 32 is relatively small. Therefore, such a design further reduces the weight of the base 3 while meeting the support stiffness and strength of the base 3.

[0059] In a specific embodiment, the base 3 is installed at the top center position of the flange 1 through a rotating assembly; the rotating assembly includes: a first rotating gear 41 connected and fixed to the top surface of the flange 1; the flange 1 has a gear mounting hole 12 for mounting the first rotating gear 41, and the first rotating gear 41 can be fixed by passing a bolt through the gear mounting hole 12; a second rotating gear 42 is arranged at the bottom of the base 3 and meshed with the first rotating gear 41; the first rotating gear 41 is connected to the base 3 through a bearing (not shown in the figure). Furthermore, the antenna base also includes: a power member 44 for driving the second rotating gear 42 to rotate; the power member 44 can be a motor; a bearing portion 43 for supporting and fixing the power member 44 is formed by extending outward from the bottom surface of the connecting portion 31 of the base 3; specifically, the bearing portion 43 includes a placement hole 431 for installing the power member 44, and the outer periphery of the placement hole 431 includes a plurality of installation and fixing holes 432 for fixing the power member 44, and the power member 44 is installed and fixed in the placement hole 431 through the installation and fixing holes 432. Further, as Figure 2 and Figure 3 As shown, the projection of the bearing portion 43 in the horizontal plane is located between the projections of two adjacent first extension portions 331 or second extension portions 332 in the horizontal plane. In this way, the power member 44 can pass through the gap between the two adjacent first extension portions 331, and the gap between the two adjacent second extension portions 332 corresponding to the two first extension portions 331, so that the overall occupied space of the antenna seat is greatly reduced.

[0060] Further, such as Figure 3 As shown, the width of the two first extensions 331 adjacent to the bearing portion 43 at one end close to the fixed portion 32 is greater than the width of the first extension 331 not adjacent to the bearing portion 43 at one end close to the fixed portion 32; the width of the second extension 332 corresponding to the two first extensions 331 at one end close to the fixed portion 32 is equal to the width of the two first extensions 331 at one end close to the fixed portion 32. Since the bearing portion 43 with the rotating member is heavy, such a design enables the support portion to play a role of stabilizing the bearing portion 43 with the rotating member.

[0061] In actual application, when the power part 44 located on the bearing part 43 rotates, it drives the second rotating gear 42 to rotate, and the second rotating gear 42 drives the first rotating gear 41 to rotate; because the base 3 is fixed on the aircraft body, the first rotating gear 41 can drive the flange 1 to rotate through the bearing when it rotates, so that the flange 1 and the support arm 2 located at the bottom of the flange 1 can rotate relative to the base 3, that is, the support arm 2 can rotate relative to the aircraft body; because the antenna load is installed on the support arm 2, the antenna load can be rotated relative to the aircraft body during the flight of the aircraft, so that the antenna load can detect the target in all directions; here, the antenna load can be a radar.

[0062] In a specific embodiment, the bottom of the flange 1 protrudes outward to form a protrusion 11 with a symmetrical structure; the center position of the protrusion 11 is coaxially arranged with the center position of the flange 1. The setting of the protrusion 11 further enhances the rigidity and strength of the flange 1, and makes its bearing capacity stronger; specifically, since the base 3 is located at the center position of the flange 1, the base 3 is located at the center position of the protrusion 11; the two support arms 2 are symmetrically arranged on the protrusion 11. Therefore, the position of the flange 1 with the protrusion 11 provides a stronger bearing capacity for the base 3 and the support arm 2, so that the base 3 and the support arm 2 can be stably connected to the flange 1.

[0063] Specifically, a first support hole 111 and a second support hole 21 are respectively provided on both sides of the protrusion 11 and the top of the support arm 2 , and the support arm 2 can be connected and fixed to both sides of the protrusion 11 by passing bolts through the first support hole 111 and the second support hole 21 .

[0064] In a specific embodiment, the bottom of the support arm 2 includes a mounting hole 22 for mounting the antenna load; the outer periphery of the mounting hole 22 includes a plurality of fixing holes 23 for fixing the antenna load. The antenna load is fixed in the mounting hole 22 through the fixing holes 23, so that the antenna load can stably rotate relative to the aircraft body.

[0065] In a specific embodiment, a weight-reducing groove is further provided above the mounting hole 22 on the support arm 2; the bottom of the weight-reducing groove has a through weight-reducing hole 241, and the side wall of the weight-reducing groove is provided with a reinforcing rib 26. The design of the weight-reducing groove and the weight-reducing hole 241 enables the support arm 2 to reduce its weight while not affecting its rigidity and strength, thereby further reducing the weight of the antenna base provided by the present application.

[0066] Specifically, the weight-reducing groove includes a first weight-reducing groove 24 and a second weight-reducing groove 25; the weight-reducing hole 241 is arranged on the first weight-reducing groove 24, and the second weight-reducing groove 25 is located between the first weight-reducing groove 24 and the mounting hole; the opening directions of the first weight-reducing groove 24 and the second weight-reducing groove 25 can be the same.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An antenna base, characterized in that: include: Flange; Two support arms symmetrically arranged on the bottom surface of the flange; A base rotatably connected to the flange; The base comprises: A connecting portion rotatably connected to the flange; A fixing portion surrounding the outer ring of the connecting portion and connected and fixed to the aircraft body; A supporting portion for connecting the fixing portion and the connecting portion; A plurality of first extension portions are extended from the upper end of the outer side wall of the connecting portion toward the fixing portion; A plurality of second extension portions respectively corresponding to the plurality of first extension portions are extended from the lower end of the outer side wall of the connecting portion toward the direction of the fixing portion; The plurality of first extension portions and the plurality of second extension portions together form the support portion.

2. The antenna base according to claim 1, characterized in that: The plurality of first extension portions overlap with the plurality of second extension portions respectively corresponding to the first extension portions at one end close to the fixing portion; One end of two adjacent first extension parts close to the connecting part are connected and fixed; One end of two adjacent second extension parts close to the connecting part is connected and fixed.

3. The antenna base according to claim 1, characterized in that: The width of the first extension portion gradually decreases from an end close to the connecting portion to an end close to the fixing portion; The width of the second extension portion gradually decreases from an end close to the connecting portion to an end close to the fixing portion.

4. The antenna base according to claim 1, characterized in that: The base is installed at the top center of the flange through a rotating assembly; The rotating assembly comprises: A first rotating gear connected and fixed to the top surface of the flange; a second rotating gear disposed at the bottom of the base and meshing with the first rotating gear; The first rotating gear is connected to the base through a bearing.

5. The antenna base according to claim 4, characterized in that: The antenna base also includes: A power member for driving the second rotating gear to rotate; A bearing portion is formed by extending outward from the bottom surface of the connecting portion of the base to bear and fix the power member; The projection of the bearing portion in the horizontal plane is located between the projections of two adjacent first extending portions or second extending portions in the horizontal plane.

6. The antenna base according to claim 1, characterized in that: The bottom of the flange protrudes outward to form a protrusion with a symmetrical structure; The center position of the protruding portion is coaxially arranged with the center position of the flange.

7. The antenna base according to claim 6, characterized in that: The two support arms are symmetrically arranged on the protruding parts respectively.

8. The antenna base according to claim 1, characterized in that: The bottom of the support arm includes a mounting hole for mounting an antenna load; The outer periphery of the mounting hole includes a plurality of fixing holes for fixing the antenna load.

9. The antenna base according to claim 1, characterized in that: A weight-reducing groove is also provided above the mounting hole on the support arm; The bottom of the weight-reducing groove is provided with a through weight-reducing hole, and the side wall of the weight-reducing groove is provided with reinforcing ribs.

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