Rotary clamp for high-speed rotary antenna test

Abstract

The utility model discloses a rotating clamp for high-speed rotating antenna test, which comprises a power device, a transmission mechanism and a switching taper pipe, the switching taper pipe is mounted on a connecting plate through a bearing, the output end of the power device is connected with the switching taper pipe through the transmission mechanism, a signal transmission device is further mounted on the connecting plate through a support, and the signal transmission device is connected with the switching taper pipe through a bearing. A tested antenna can be installed on the adapter taper pipe, the tested antenna is further connected with a signal transmission device, and the signal transmission device can stably transmit high and low frequency signals. According to the utility model, a rotation rate of 30-300 revolutions per second can be provided for an antenna test requiring high-dynamic and high-speed rotation, transmission of 30 low-frequency and 2 high-frequency signals can be provided through the high-speed slip ring, and the adapter can adapt to antennas of different sizes by replacing the adapter taper pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna detection, in particular to a rotating fixture used for high-speed rotating antenna testing. Background Art

[0002] Typically, fixtures used for antenna testing primarily provide a mounting platform, orientation, and direction for the antenna. Some fixtures can also provide a certain level of low-speed rotation. However, for antennas operating in highly dynamic, high-speed rotation environments, antenna performance testing must closely simulate the actual operating environment. This requires a specially designed test fixture capable of high-speed rotation and stable transmission of high and low-frequency signals. The antenna to be tested is mounted on a rotating fixture, which rotates to provide a highly dynamic, high-speed test environment. The fixture's rotation rate range, rotational stability, and high- and low-frequency signal transmission stability are all crucial factors in antenna performance testing. Utility Model Content

[0003] The purpose of the utility model is to provide a rotating fixture for high-speed rotating antenna testing, so as to solve the technical problem in the prior art that there is no fixture for testing antennas in a high-dynamic, high-speed rotating environment.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The utility model provides a rotating fixture for high-speed rotating antenna testing, comprising a power device, a transmission mechanism and a transfer cone tube, wherein the transfer cone tube is mounted on a connecting plate via a bearing, the output end of the power device is connected to the transfer cone tube via the transmission mechanism, a signal transmission device is further mounted on the connecting plate via a bracket, the antenna to be tested can be mounted on the transfer cone tube, the antenna to be tested is further connected to the signal transmission device, and the signal transmission device can stably transmit high and low frequency signals.

[0006] Furthermore, it also includes a base, and the bottom of the power device is fixed to the base by bolts.

[0007] Furthermore, the base provides structural stability for the entire rotating fixture and can be fixed to the ground, table, etc. when necessary (during high-speed rotation).

[0008] Furthermore, it also includes side panels, and the side panels and connecting plates are detachably mounted on the base by screws.

[0009] Furthermore, the power device is a high-speed motor, the transmission mechanism is a gear transmission mechanism, and the gear transmission mechanism includes a driven gear.

[0010] Furthermore, the gear transmission mechanism changes the speed of the high-speed motor to 30-300 rpm.

[0011] Furthermore, the high-speed motor uses 220V AC power supply, the speed is steplessly adjustable, and it provides rotational power. The motor speed range is 300~3000 rpm. It is fixed to the base, and the weight of the motor itself can increase the stability of the rotating fixture.

[0012] Furthermore, the signal transmission device is a high-speed slip ring. The slip ring rotor cable is connected to the antenna under test and rotates with the rotating component. A bracket secures the high-speed slip ring stator to the connecting plate. Adjusting the bracket assembly adjusts the concentricity of the high-speed slip ring rotor, center shaft, and driven gear, ensuring the stability and reliability of the entire test system.

[0013] Furthermore, the high-speed slip ring stator outputs high and low frequency signals for testing. Conductive rings and brushes are used between the rotor and stator to ensure uninterrupted signal transmission during 360° continuous rotation. The conductive rings and brushes of the high-speed slip ring adopt an elastic structure.

[0014] Furthermore, high-speed slip rings are used to transmit high and low frequency signals during high-speed rotation testing of antennas. The conductive rings and brushes of the high-speed slip rings adopt an elastic structure to achieve stable signal transmission at a speed of up to 300 rpm. The slip rings can provide stable transmission of 30 low-frequency signals and 2 high-frequency signals.

[0015] Furthermore, the antenna under test is threadedly connected to the adapter cone and fixed with a set screw. An adapter cone can adapt to antennas within a certain size range. When the size difference between the antenna and the adapter cone is large, the adapter cone needs to be replaced.

[0016] Furthermore, the outer ring of the bearing is installed on the connecting plate by interference fit, the inner ring of the bearing is installed on the central shaft by interference fit, and each section of the central shaft is respectively installed with an adapter, a driven gear of the gear transmission mechanism, and a rotor.

[0017] Furthermore, the adapter is fixed to the central shaft by screws, and the bearing is limited by a first bearing retaining ring and a second bearing retaining ring fixed to the connecting plate to prevent the bearing from shifting during high-speed rotation.

[0018] Furthermore, the center shaft is used to synchronously transmit the gear rotation rate to the adapter (and then to the adapter cone, and then to the antenna under test) and the rotor of the high-speed slip ring.

[0019] Furthermore, the adapter cone is threadedly connected to the adapter (11) and is tightened to ensure that the adapter cone rotates synchronously with the adapter. Antennas of different sizes can be tested by replacing the adapter cone.

[0020] Based on the above technical solution, the embodiments of the present utility model can produce at least the following technical effects:

[0021] The rotary fixture provided by the utility model can provide a rotation rate of 30 to 300 revolutions per second for antenna tests that require high dynamics and high-speed rotation. It can provide the transmission of 30 low-frequency + 2 high-frequency signals through high-speed slip rings, and can adapt to antennas of different sizes by replacing the adapter cone. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0024] Figure 2 It is an internal cross-sectional view of the present utility model;

[0025] Figure 3 It is the external dimension drawing of the embodiment of the utility model;

[0026] In the figure: 1. Connecting plate; 2. Power device; 3. Signal transmission device; 301. Rotor; 302. Stator; 4. Transmission mechanism; 5. Bearing; 6. Adapter cone; 102. Base; 103. Side plate; 7. Bracket; 8. Central shaft; 9. Bearing retaining ring 1; 10. Bearing retaining ring 2; 11. Adapter. DETAILED DESCRIPTION

[0027] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work fall within the scope of protection of the present invention.

[0028] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting this application; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, 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; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] Example 1

[0030] The utility model provides a rotating fixture for high-speed rotating antenna testing, comprising a power device 2, a transmission mechanism 4 and an adapter cone 6, wherein the adapter cone 6 is mounted on a connecting plate 1 via a bearing 5, the output end of the power device 2 is connected to the adapter cone 6 via the transmission mechanism 4, a signal transmission device 3 is further mounted on the connecting plate 1 via a bracket 7, the adapter cone 6 can be mounted on the antenna to be tested, and the antenna to be tested is also connected to the signal transmission device 3, and the signal transmission device 3 can stably transmit high and low frequency signals.

[0031] In this embodiment, a base 102 is further included, and the bottom of the power device 2 is fixed to the base 102 by bolts.

[0032] In this embodiment, a side plate 103 is further included. The side plate 103 and the connecting plate 1 are detachably mounted on the base 102 by screws.

[0033] In this embodiment, the power device 2 is a high-speed motor, and the transmission mechanism 4 is a gear transmission mechanism.

[0034] In this embodiment, the signal transmission device 3 is a high-speed slip ring, whose rotor cable is connected to the antenna under test. The stator of the high-speed slip ring outputs high- and low-frequency signals for testing. Conductive rings and brushes are used between the rotor and stator to ensure uninterrupted signal transmission during 360-degree continuous rotation. The conductive rings and brushes of the high-speed slip ring are elastic.

[0035] In this embodiment, the antenna under test is threadedly connected to the adapter cone 6 and fixed with a set screw.

[0036] In this embodiment, the adapter cone 6 is connected to the inner ring of the bearing 5 by interference fit, rotates with the bearing 5, and carries the antenna to be tested.

[0037] Example 2

[0038] like Figure 1-3 As shown, the utility model provides a rotating fixture for high-speed rotating antenna testing, including a power device 2, a transmission mechanism 4 and a transfer cone 6, wherein the transfer cone 6 is mounted on a connecting plate 1 through a bearing 5, and the output end of the power device 2 is connected to the transfer cone 6 through the transmission mechanism 4, and a signal transmission device 3 is further mounted on the connecting plate 1 through a bracket 7, and the antenna to be tested can be mounted on the transfer cone 6, and the antenna to be tested is also connected to the signal transmission device 3, and the signal transmission device 3 can stably transmit high and low frequency signals.

[0039] In this embodiment, a base 102 is further included, and the bottom of the power device 2 is fixed to the base 102 by bolts.

[0040] In this embodiment, a side plate 103 is further included. The side plate 103 and the connecting plate 1 are detachably mounted on the base 102 by screws.

[0041] In this embodiment, the power device 2 is a high-speed motor, the transmission mechanism 4 is a gear transmission mechanism, and the gear transmission mechanism includes a driven gear 401 .

[0042] In this embodiment, the signal transmission device 3 is a high-speed slip ring, and the rotor 301 of the high-speed slip ring is connected to the antenna under test by a cable.

[0043] In this embodiment, the stator 302 of the high-speed slip ring outputs high and low frequency signals for testing. A conductive ring and brushes are used between the rotor 301 and the stator 302 to ensure uninterrupted signal transmission during 360° continuous rotation. The conductive ring and brushes of the high-speed slip ring adopt an elastic structure.

[0044] In this embodiment, the antenna under test is threadedly connected to the adapter cone 6 and fixed with a set screw.

[0045] In this embodiment, the outer ring of the bearing 5 is installed on the connecting plate 1 by interference fit, and the inner ring of the bearing 5 is installed on the central shaft 8 by interference fit. The adapter 11, the driven gear 401 of the gear transmission mechanism, and the rotor 301 are installed on each section of the central shaft 8 respectively.

[0046] In this embodiment, the adapter 11 is fixed to the central shaft 8 by screws; the bearing 5 is limited by a bearing retaining ring 1 9 and a bearing retaining ring 2 10 fixed to the connecting plate 1 .

[0047] The structures, functions, and connection forms disclosed herein may be implemented in other ways. For example, the embodiments described above are merely illustrative, and multiple components may be combined or integrated into another component. In addition, the functional components in the various embodiments herein may be integrated into a single functional component, or each functional component may exist physically separately, or two or more functional components may be integrated into a single functional component.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A rotating fixture for high-speed rotating antenna testing, characterized in that: The invention comprises a power device (2), a transmission mechanism (4) and a transfer cone (6), wherein the transfer cone (6) is mounted on a connecting plate (1) via a bearing (5), an output end of the power device (2) is connected to the transfer cone (6) via the transmission mechanism (4), a signal transmission device (3) is further mounted on the connecting plate (1) via a bracket (7), a measured antenna can be mounted on the transfer cone (6), and the measured antenna is further connected to the signal transmission device (3), and the signal transmission device (3) can stably transmit high and low frequency signals.

2. The rotating fixture for high-speed rotating antenna testing according to claim 1, characterized in that: It also includes a base (102), and the bottom of the power device (2) is fixed to the base (102) by bolts.

3. The rotating fixture for high-speed rotating antenna testing according to claim 1, characterized in that: It also includes a side plate (103), wherein the side plate (103) and the connecting plate (1) are detachably mounted on the base (102) by screws.

4. The rotating fixture for high-speed rotating antenna testing according to claim 1, characterized in that: The power device (2) is a high-speed motor, the transmission mechanism (4) is a gear transmission mechanism, and the gear transmission mechanism includes a driven gear (401).

5. The rotating fixture for high-speed rotating antenna testing according to claim 1, characterized in that: The signal transmission device (3) is a high-speed slip ring, and the rotor (301) of the high-speed slip ring is connected to the antenna under test through a cable.

6. The rotating fixture for high-speed rotating antenna testing according to claim 5, characterized in that: The stator (302) of the high-speed slip ring outputs high and low frequency signals for testing. A conductive ring and a brush are used between the rotor (301) and the stator (302) to ensure that signal transmission is uninterrupted during 360° continuous rotation. The conductive ring and the brush of the high-speed slip ring adopt an elastic structure.

7. The rotating fixture for high-speed rotating antenna testing according to claim 1, characterized in that: The antenna to be tested is threadedly connected to the adapter cone (6) and fixed with a set screw.

8. The rotating fixture for high-speed rotating antenna testing according to claim 1, characterized in that: The outer ring of the bearing (5) is installed on the connecting plate (1) by interference fit, and the inner ring of the bearing (5) is installed on the central shaft (8) by interference fit. Each section of the central shaft (8) is respectively installed with an adapter (11), a driven gear (401) of the gear transmission mechanism, and a rotor (301).

9. The rotating fixture for high-speed rotating antenna testing according to claim 8, characterized in that: The adapter (11) is fixed to the central shaft (8) by screws; the bearing (5) is limited by a first bearing retaining ring (9) and a second bearing retaining ring (10) fixed to the connecting plate (1).

10. The rotating fixture for high-speed rotating antenna testing according to claim 1, characterized in that: The adapter cone (6) is threadedly connected to the adapter (11) and is tightened.

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