Rotary combined structure

Abstract

The utility model relates to a rotary combined structure. The rotary combined structure comprises a rotor part and a stator part, the rotor part is provided with a rotor coaxial cable, a rotor power divider and a rotor optical waveguide. One end of the coaxial cable is connected with the rotating element and the other end is connected with the input end of the rotor power divider. One end of the optical waveguide is connected with the rotating element, and the other end of the optical waveguide penetrates through the rotor shaft hole to abut against the stator optical waveguide of the stator shaft hole; the output ends of the rotor power dividers abut against the annular wall of the annular conductor, and the annular conductor is connected with the static element. The rotor part and the stator part are rotatably connected, and the axes of the annular conductor, the rotor shaft hole and the stator shaft hole coincide with the rotation axis of the rotor part. Compared with an existing single-channel rotation combination structure, at least two microwave conduction channels are constructed between the rotation element and the dynamic element, the number of microwave signal transmission channels can be increased, and the requirements for line connection and microwave signal conduction between a dynamic system and a static system of a radar system are better met.

Description

Technical Field

[0001] The present application relates to the technical field of radar communication systems, and in particular to a rotating combined structure. Background Art

[0002] In microwave communication systems or radar systems, in order to ensure the effective transmission of microwave signals between the dynamic antenna system and the static system and realize the antenna's signal search, tracking, target measurement and other functions, a rotating joint needs to be installed between the two.

[0003] The existing rotating joint / rotating structure installed between the dynamic element and the static element usually only has a single channel for microwave signal transmission, such as patent document CN106410333A. However, the dynamic system and the static system of the radar system need to be connected by multiple lines and microwave signals need to be transmitted, and the single-channel rotating combination structure cannot meet the transmission requirements.

[0004] Therefore, how to increase the number of microwave signal transmission channels of the rotating structure has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In order to increase the number of microwave signal transmission channels of a rotating structure, the present application provides a rotating combination structure.

[0006] A rotating combined structure is provided to achieve the purpose of the utility model, comprising:

[0007] A rotor part and a stator part;

[0008] The rotor part is provided with a rotor coaxial cable, a rotor power divider and a rotor optical waveguide, one end of the coaxial cable is suitable for connecting with the rotating element to transmit the microwave signal, and the other end of the coaxial cable is connected with the input end of the rotor power divider, and the rotor part is provided with a rotor shaft hole;

[0009] The stator part is provided with an annular conductor and a stator optical waveguide, the output end of the rotor power divider is in contact with the annular wall of the annular conductor to transmit microwave signals, the rotation track of the output end of the rotor power divider is located on the annular wall of the annular conductor, the annular conductor is suitable for connecting with a static element to transmit microwave signals, the stator part is provided with a stator shaft hole, the stator shaft hole and the rotor shaft hole are coaxially arranged opposite to each other, the stator optical waveguide is located in the stator shaft hole, one end of the rotor optical waveguide is suitable for connecting with a rotating element to transmit microwave signals, the other end of the rotor optical waveguide passes through the rotor shaft hole and is in contact with one end of the stator optical waveguide to transmit microwave signals, and the other end of the stator optical waveguide is suitable for connecting with a static element to transmit microwave signals;

[0010] The rotor part and the stator part are rotatably connected, and the axis of the annular conductor, the axis of the rotor shaft hole and the rotation axis of the rotor part coincide with each other.

[0011] The present application constructs at least two microwave conduction channels between the rotating element and the dynamic element by setting up two types of microwave signal conduction channels, namely, an optical waveguide transmission line (involving the rotor optical waveguide and the stator optical waveguide) and a coaxial cable transmission line (involving the rotor coaxial cable, the rotor power divider and the annular conductor). Compared with the existing single-channel rotating combination structure, the application can increase the number of microwave signal transmission channels of the rotating combination structure, and can better meet the multi-line connection and microwave signal conduction requirements between the dynamic system and the static system of the radar system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram showing the structure of the rotating assembly structure of an embodiment of the present application;

[0013] Figure 2 A schematic diagram showing the structure of the rotating assembly structure of an embodiment of the present application;

[0014] Figure 3 An external structural diagram of a shaft section of an embodiment of the present application is shown;

[0015] Figure 4 A diagram showing the connection structure of the rotating joint and the shaft joint portion of an embodiment of the present application;

[0016] Figure 5 A schematic diagram showing the structure of a rotating joint according to an embodiment of the present application;

[0017] Figure 6 Show Figure 4 A schematic diagram of a partial structure of an embodiment;

[0018] Figure 7 A schematic diagram showing the structure of the rotating assembly structure of an embodiment of the present application;

[0019] Figure 8 A schematic diagram showing the structure of the rotating assembly structure of an embodiment of the present application;

[0020] Fig. 9 A schematic diagram showing the structure of the rotating assembly structure of an embodiment of the present application;

[0021] Fig.10 A top view of the rotating assembly structure of an embodiment of the present application is shown;

[0022] Fig.11 A bottom view showing a rotating assembly structure according to an embodiment of the present application;

[0023] Fig.12 A schematic diagram showing the structure of the shaft section of an embodiment of the present application;

[0024] Fig.13 Show Fig.12 A bottom view of the structure of the shaft section of the embodiment;

[0025] Fig.14 Show Fig.11 A top view of the shaft section of an embodiment;

[0026] Fig.15 Show Fig.11 A bottom view of the shaft section of the embodiment;

[0027] Fig.16 Show Fig.12 A front view of the shaft joint of an embodiment.

[0028] Rotor part 100, first joint 110, rotor coaxial cable 120, rotating joint 130, second axial hole 131, rotor power divider 132, bearing 133, third joint 140, rotor optical waveguide 150, stator part 200, shaft joint part 210, annular conductor 211, stator combiner 212, stator coaxial cable 213, second joint 214, stator optical waveguide 220, fourth joint 230, flange connector 300. DETAILED DESCRIPTION

[0029] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0030] Among them, it should be understood that the directions or positional relationships indicated by terms such as "length", "width", "height", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0032] The present application provides a rotating combined structure, including a rotor part 100 and a stator part 200. The rotor part 100 is provided with a rotor coaxial cable 120, a rotor power divider 132 and a rotor optical waveguide 150, one end of the coaxial cable is suitable for connecting with a rotating element to transmit a microwave signal, and the other end of the coaxial cable is connected with an input end of the rotor power divider 132, the rotor part 100 is provided with a rotor shaft hole, and one end of the rotor optical waveguide is suitable for connecting with a rotating element to transmit a microwave signal;

[0033] The stator part 200 is provided with an annular conductor 211 and a stator optical waveguide 220. The output end of the rotor power divider 132 is in contact with the annular wall of the annular conductor 211 to transmit microwave signals. The rotation track of the output end of the rotor power divider 132 is located on the annular wall of the annular conductor 211. The annular conductor 211 is suitable for connecting with a static element to transmit microwave signals. The stator part 200 is provided with a stator shaft hole. The stator shaft hole is located inside the annular shape of the annular conductor 211. The side wall of the stator shaft hole and the stator optical waveguide 220 therein are insulated from the annular conductor 211 (an insulating gap is provided or an insulating part is provided between the two for connection). The stator shaft hole and the rotor shaft hole are coaxially arranged relative to each other. The stator optical waveguide 220 is located in the stator shaft hole. The other end of the rotor optical waveguide 150 passes through the rotor shaft hole and is in contact with one end of the stator optical waveguide 220 to transmit microwave signals. The other end of the stator optical waveguide is suitable for connecting with a static element to transmit microwave signals.

[0034] The rotor part 100 and the stator part 200 are rotatably connected, and the axis of the annular conductor 211 , the axis of the rotor shaft hole and the rotation axis of the rotor part 100 coincide with each other.

[0035] The present application sets a rotor optical waveguide 150 at the axis of the rotating rotor part 100, sets a stator optical waveguide 220 at the axis of the static stator part 200, and the rotor optical waveguide 150 and the stator optical waveguide 220 are arranged relative to each other, so that the rotor optical waveguide 150 always abuts against the stator optical waveguide 220 in the process of following the rotation of the rotor part 100 to transmit microwave signals. In addition, a rotor coaxial cable 120 is set on the rotating rotor part 100, and the rotor coaxial cable 120 is connected to the rotor power divider 132 as a connector, and a ring conductor 211 is set on the static stator part 200. And the rotation trajectory of the output end of the rotor power divider 132 rotating around the rotation axis of the rotor part 100 is always located on the ring wall of the ring conductor 211 and abuts to transmit microwave signals. Therefore, in the process of the rotor power divider 132 following the rotation of the rotor part 100, the rotor power divider 132 is always connected to the ring conductor 211 of the stator part 200 to transmit microwave signals.

[0036] The present application constructs at least two microwave conduction channels between the rotating element and the dynamic element by setting up two types of microwave signal conduction channels, namely, an optical waveguide transmission line (involving the rotor optical waveguide 150 and the stator optical waveguide 220) and a coaxial cable transmission line (involving the rotor coaxial cable 120, the rotor power divider 132 and the annular conductor 211). Compared with the existing single-channel rotating combination structure, the number of microwave signal transmission channels of the rotating combination structure can be increased, and the multi-line connection and microwave signal conduction requirements between the dynamic system and the static system of the radar system can be better met.

[0037] In a possible implementation, one end of the rotor optical waveguide 150 is connected to the first connector 110, and the rotor optical waveguide 150 is connected to the rotating element through the first connector 110 to transmit microwave signals; one end of the stator optical waveguide 220 is connected to the second connector 214, and the stator optical waveguide 220 is connected to the static element to transmit microwave signals through the second connector 214. Further, both the first connector 110 and the second connector 214 are FC connectors.

[0038] In a possible implementation, a stator coaxial cable 213 is further included; one end of the stator coaxial cable 213 is connected to the annular conductor 211 to transmit microwave signals, and the other end of the stator coaxial cable 213 passes through the stator part 200 and is connected to the static element to transmit microwave signals.

[0039] In a possible implementation, one end of the stator coaxial cable 213 passing through the stator part 200 is connected to a fourth connector 230 , and the fourth connector 230 is suitable for being electrically connected to a static element to transmit a microwave signal.

[0040] In a possible implementation, the fourth connector 230 is located at one end of the rotor part 100 away from the stator part 200, and one end of the rotor coaxial cable 120 passes through the rotor shaft hole and is electrically connected to the input end of the rotor power divider 132. Further, the fourth connector 230 is an SMA connector.

[0041] In a possible implementation, there are more than two rotor coaxial cables 120 , and the number of rotor power dividers 132 and annular conductors 211 is consistent with the number of rotor coaxial cables 120 and connected one-to-one.

[0042] In a possible implementation, the stator portion 200 includes more than two shaft joint portions 210, which are coaxially arranged adjacent to each other, and two adjacent shaft joint portions 210 are connected; the shaft joint portion 210 is provided with an annular conductor 211 and a stator combiner 212, and the shaft joint portion 210 is provided with a first shaft hole, and the first shaft holes of the more than two shaft joint portions 210 are coaxially arranged and connected in sequence for the rotor optical waveguide 150 / the rotating joint 130 with the rotor optical waveguide 150 built therein to pass through, and the rotor optical waveguide 150 passes through the rotor shaft hole and the first shaft hole in sequence and then abuts against the stator optical waveguide 220 of the stator shaft hole, the number of the shaft joint portions 210 is consistent with that of the rotor coaxial cable 120, and the more than two rotor coaxial cables 120 are connected one-to-one with the annular conductors 211 and the stator combiner 212 of the more than two shaft joint portions 210.

[0043] In a possible implementation, the rotor part 100 is provided with more than two rotating joints 130 at one end along the rotation axis thereof, each rotating joint 130 is provided with a second axial hole 131, the more than two rotating joints 130 are adjacently distributed along the rotation axis of the rotor part 100, and the second axial holes 131 of the more than two rotating joints 130 are coaxially arranged and sequentially connected to form a part / the whole of the rotor axial hole (for example, the rotor part 100 only includes more than two rotating joints 130 connected in sequence). A rotating joint 130 close to the rotor part 100 is connected to the rotor part 100, preferably detachably connected, preferably plug-in. Two adjacent rotating joints 130 are connected, preferably detachably connected, preferably plug-in. The number of rotating joints 130 is consistent with the number of rotor coaxial cables 120, each rotating joint 130 is provided with a rotor power divider 132, the more than two rotor coaxial cables 120 are connected to the rotor power dividers 132 of the more than two rotating joints 130 in a one-to-one correspondence, and the rotor coaxial cable is connected to the annular conductor 211 through the rotor power divider 132.

[0044] Furthermore, the number of the rotating joints 130 and the shaft joint parts 210 are the same and are arranged in one-to-one correspondence, and the rotating joint 130 passes through the first shaft hole of the shaft joint part 210 to be connected with another rotating joint 130 in another shaft joint part 210 .

[0045] In a possible implementation, two adjacent shaft joints 210 are detachably connected, and two adjacent rotating joints 130 are detachably connected. The shaft joints 210 and the rotating joints 130 are arranged one by one, and the outer wall of the rotating joint 130 is provided with a bearing 133 to be rotatably connected to the inner wall of the first shaft hole of the shaft joint 210. When disassembling, the combination of the rotating joint 130 and the shaft joint 210 is used as a disassembly unit, and the disassembly unit is replaced and reassembled or the number is increased or decreased. The disassembly unit can also be further disassembled, and the damaged components can be replaced and replaced to be put into use again.

[0046] In a possible implementation, the stator part 200 is further provided with a stator combiner 212, the annular conductor 211 is connected to the input end of the stator combiner 212 to transmit microwave signals, and the output end of the stator combiner 212 is suitable for connecting to a static element to transmit microwave signals.

[0047] In one possible implementation, the rotor power divider 132 and the stator combiner 212 are matched, and the output end of the rotor power divider 132 and the output end of the stator combiner 212 are independently connected in a one-to-one correspondence through the annular conductor 211. Furthermore, the rotor power divider 132 is a 1x2 power divider, that is, a power divider with one input and two outputs. The stator combiner 212 is a 2x1 combiner, that is, a combiner with two inputs and one output. The annular conductor 211 includes a first connector and a second connector, and the first connector and the second connector are both annular conductors and are coaxially arranged. The first connector is located inside the annular part of the second connector, and the outer wall of the first connector and the inner wall of the second connector are insulated (for example, an insulating gap is set or an insulating part is set between the two walls). One of the output ends of the rotor power divider 132 abuts against the annular wall of the first connection member to transmit microwave signals, and the rotation trajectory of the output end rotating around the rotation axis of the rotor part 100 is located on the annular wall of the first connection member, and one of the input ends of the stator combiner 212 is connected to the annular wall of the first connection member to transmit microwave signals. Another output end of the rotor power divider 132 abuts against the annular wall of the second connection member to transmit microwave signals, and the rotation trajectory of the output end rotating around the rotation axis of the rotor part 100 is located on the annular wall of the second connection member, and another input end of the stator combiner 212 is connected to the annular wall of the second connection member to transmit microwave signals.

[0048] In a possible implementation, the rotation radius of the two or more output ends of the rotor power divider 132 around the rotation axis of the rotor part 100 is consistent, and the annular conductor 211 is an integrally formed single-ring conductor.

[0049] In a possible implementation, one axial end of the annular conductor 211 abuts against the output end of the rotor power divider 132 , the other axial end of the annular conductor 211 is connected to two or more connecting rods, and the input end of the stator combiner 212 is connected to the annular conductor 211 through the connecting rods.

[0050] In a possible implementation, the rotor part 100 is provided with a bearing 133, and the rotor part 100 is rotatably connected to the stator part 200 through the bearing 133. Further, the rotor part 100 is connected to the stator part 200 through the bearing 133 of the rotating joint 130. Furthermore, the end of the rotor part 100 close to the stator part 200 is connected with a flange connector 300, and the axial end (first shaft hole) of a shaft joint part 210 closest to the rotor part 100 is rotatably connected to the rotor part 100 through the flange connector 300. The rotation axis of the flange connector 300 and the bearing 133 are consistent, both are the rotation axis of the rotor part 100 on the stator part 200, and are consistent with the rotation axis of the rotating element connected to the rotor part 100, so as to keep the rotor part 100 and the rotating element in the same rotational pace.

[0051] In a possible implementation, the rotor optical waveguide 150 and the stator optical waveguide 220 are both in the shape of long strips, the length direction of the rotor optical waveguide 150 and the length direction of the stator optical waveguide 220 are both consistent with the rotation axis of the rotor part 100, and one end of the length of the rotor optical waveguide 150 abuts against one end of the length of the stator optical waveguide 220. In addition, one end of the rotor optical waveguide 150 is connected to the third joint 140, the first joint 110 and the third joint 140 are both located at one end of the rotor part 100 away from the stator part 200, and the other end of the rotor optical waveguide 150 passes through the rotor shaft hole and abuts against the stator optical waveguide 220 to transmit microwave signals. The second joint 214 and the fourth joint 230 are both located on the outer wall of the stator part 200 away from the rotor part 100.

[0052] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A rotating combined structure, It is characterized in that include: A rotor part and a stator part; The rotor part is provided with a rotor coaxial cable, a rotor power divider and a rotor optical waveguide, one end of the coaxial cable is suitable for connecting with the rotating element to transmit the microwave signal, and the other end of the coaxial cable is connected with the input end of the rotor power divider, and the rotor part is provided with a rotor shaft hole; The stator part is provided with an annular conductor and a stator optical waveguide, the output end of the rotor power divider is in contact with the annular wall of the annular conductor to transmit microwave signals, the rotation track of the output end of the rotor power divider is located on the annular wall of the annular conductor, the annular conductor is suitable for connecting with a static element to transmit microwave signals, the stator part is provided with a stator shaft hole, the stator shaft hole and the rotor shaft hole are coaxially arranged opposite to each other, the stator optical waveguide is located in the stator shaft hole, one end of the rotor optical waveguide is suitable for connecting with a rotating element to transmit microwave signals, the other end of the rotor optical waveguide passes through the rotor shaft hole and is in contact with one end of the stator optical waveguide to transmit microwave signals, and the other end of the stator optical waveguide is suitable for connecting with a static element to transmit microwave signals; The rotor part and the stator part are rotatably connected, and the axis of the annular conductor, the axis of the rotor shaft hole and the rotation axis of the rotor part coincide with each other.

2. The rotating assembly structure according to claim 1, It is characterized in that One end of the rotor optical waveguide is connected to a first connector, and the rotor optical waveguide is connected to the rotating element through the first connector to transmit microwave signals; One end of the stator optical waveguide is connected with a second connector, and the stator optical waveguide is connected to a static element through the second connector to transmit microwave signals.

3. The rotating assembly structure according to claim 2, It is characterized in that The first connector and the second connector are both FC connectors.

4. The rotating assembly structure according to claim 1, It is characterized in that Also included is a stator coaxial cable; One end of the stator coaxial cable is connected to the annular conductor to transmit microwave signals, and the other end of the stator coaxial cable passes through the stator part and is connected to the static element to transmit microwave signals.

5. The rotating assembly structure according to claim 4, It is characterized in that One end of the stator coaxial cable passing through the stator part is connected with a fourth connector, and the fourth connector is suitable for being electrically connected to a static element to transmit a microwave signal.

6. The rotating assembly structure according to claim 5, It is characterized in that The fourth joint is located at an end of the rotor part away from the stator part, and one end of the rotor coaxial cable passes through the rotor shaft hole and is electrically connected to the input end of the rotor power divider.

7. The rotating assembly structure according to claim 5, It is characterized in that The fourth connector is an SMA connector.

8. The rotating assembly structure according to claim 1, It is characterized in that There are more than two rotor coaxial cables, and the rotor power divider and the annular conductor are consistent in number with the rotor coaxial cables and are connected one-to-one.

9. The rotating assembly structure according to claim 8, It is characterized in that The stator part comprises more than two shaft joint parts, the more than two shaft joint parts are coaxially arranged adjacent to each other, and two adjacent shaft joint parts are connected; The shaft joint is provided with an annular conductor and a stator combiner, and the shaft joint is provided with a first axial hole, the first axial hole is coaxially arranged and connected with the rotor shaft hole, the first axial holes of two or more shaft joints are coaxially arranged and connected in sequence for the rotor optical waveguide to pass through, and the rotor optical waveguide passes through the rotor shaft hole and the first shaft hole in sequence and then abuts against the stator optical waveguide of the stator shaft hole, the shaft joint is consistent in number with the rotor coaxial cable, and the two or more rotor coaxial cables are connected one-to-one with the annular conductors and stator combiners of the two or more shaft joints.

10. The rotating assembly structure according to claim 9, It is characterized in that Two adjacent shaft joints are detachably connected.

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