CN215816436U - Automatic secondary surface adjusting mechanism for communication antenna - Google Patents
Automatic secondary surface adjusting mechanism for communication antenna Download PDFInfo
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- CN215816436U CN215816436U CN202122532722.XU CN202122532722U CN215816436U CN 215816436 U CN215816436 U CN 215816436U CN 202122532722 U CN202122532722 U CN 202122532722U CN 215816436 U CN215816436 U CN 215816436U
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- reflecting surface
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- connecting seat
- communication antenna
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Abstract
The utility model belongs to the technical field of antennas, in particular to an automatic adjusting mechanism for a secondary surface of a communication antenna; the mechanism can ensure that the vertex of the secondary surface is always kept stable and motionless in the rotating process; the design simplifies the structure, improves the working reliability, and simultaneously, the periphery of the auxiliary reflecting surface is completely free from shielding; the utility model provides an automatic secondary surface adjusting mechanism which comprises a protective shell, a connecting seat and a secondary reflecting surface, wherein the connecting seat is connected with a main reflecting surface of a Cassegrain antenna, the protective shell is installed on the connecting seat, the secondary reflecting surface is installed in the protective shell, the bottom of the secondary reflecting surface is provided with a vertex, a control assembly capable of controlling the secondary reflecting surface to use the vertex as a rotation center is arranged in the protective shell, and the control assembly is used for adjusting the state of coincidence of a focus and a focal axis between the secondary reflecting surface and the main reflecting surface of the Cassegrain antenna.
Description
Technical Field
The utility model belongs to the technical field of antennas, and particularly relates to an automatic adjusting mechanism for a secondary surface of a communication antenna.
Background
The Cassegrain antenna consists of three parts, namely a main reflector, an auxiliary reflector and a radiation source, wherein the main reflecting surface is a paraboloid of revolution, and the auxiliary reflecting surface is a hyperboloid of revolution.
In the prior art, the control of the Y-axis direction of the auxiliary reflecting surface is realized by controlling two sections of connecting rods in the radial direction of the auxiliary reflecting surface, the distance between the two connecting rods is larger than the diameter of the auxiliary reflecting surface, and the two sides of the auxiliary reflecting surface can be obviously shielded, so that the stability of signal transmission is influenced; the whole set of structural parts is multiple, the assembly process is complicated, the working state of the assembly is easy to be influenced, and additionally, parts for limiting rotation are required to be additionally added.
SUMMERY OF THE UTILITY MODEL
In view of the above, the technical problem to be solved by the present invention is to provide an automatic adjusting mechanism for a secondary surface of a communication antenna, which can ensure that the vertex of the secondary surface is always kept stable and motionless during the rotation process; the design simplifies the structure, improves the working reliability, and simultaneously achieves the purpose that the periphery of the auxiliary reflecting surface is completely free from shielding.
The utility model provides an automatic adjusting mechanism for an auxiliary surface of a communication antenna, which comprises a protective shell, a connecting seat and an auxiliary reflecting surface, wherein the connecting seat is connected with a main reflecting surface A of a Cassegrain antenna, the connecting seat is fixedly connected with the protective shell, the auxiliary reflecting surface is installed in the protective shell, the bottom of the auxiliary reflecting surface is provided with a vertex, a control assembly capable of controlling the auxiliary reflecting surface to use the vertex as a rotation center is arranged in the protective shell, and the control assembly is used for adjusting the state of coincidence of a focus point and a focal axis between the auxiliary reflecting surface and the main reflecting surface A of the Cassegrain antenna.
Control assembly includes motor control box, gear I and gear II, install the mounting panel in the protective housing, gear II passes through the rotation axis and connects on the mounting panel, install gear I on gear I's the output shaft, gear II is connected with I meshing transmission of gear, and link fixed connection rotates on the link and is connected with incomplete ring gear frame at the downside of gear II, the lower extreme at incomplete ring gear frame of subreflector fixed connection, install the motor control box on the connecting seat, the motor control box passes through the wire with gear I and is connected.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a first perspective view of a secondary surface automatic adjustment mechanism for a communication antenna according to the present invention;
fig. 2 is a second perspective view of the automatic adjusting mechanism for the secondary surface of the communication antenna provided by the present invention;
fig. 3 is a third perspective view of the automatic adjusting mechanism for the secondary surface of the communication antenna provided by the present invention;
fig. 4 is a fourth perspective view of the automatic adjusting mechanism for the secondary surface of the communication antenna provided by the present invention;
fig. 5 is a fifth perspective view of the automatic adjusting mechanism for a secondary surface of a communication antenna provided by the present invention;
fig. 6 is a sixth perspective view of an automatic adjustment mechanism for a secondary surface of a communication antenna according to the present invention;
fig. 7 is a seventh perspective view of the automatic adjusting mechanism for a secondary surface of a communication antenna provided by the present invention.
In the figure:
a main reflecting surface A;
a protective case 101;
a connecting seat 102;
a motor control box 103;
a mounting plate 201;
a connecting frame 202;
incomplete ring gear carrier 203;
a sub-reflecting surface 204;
a speed reducing motor I301;
a gear I302;
a gear II 303;
a reduction motor II 401;
a gear III 402;
an arc-shaped groove 501;
a ball 502;
the threads tighten against the strip 503.
Detailed Description
The automatic adjusting mechanism for the secondary surface of the communication antenna provided by the utility model is described in detail with reference to the attached drawings in the embodiment of the utility model.
In the mechanism, when the main reflecting surface A is deviated and the focal points and focal axes of the main reflecting surface A and the auxiliary reflecting surface 204 cannot be superposed, the auxiliary reflecting surface 204 is rotated around the vertex as an axis, and the position of the auxiliary reflecting surface 204 is corrected to restore the superposed state of the focal points and the focal axes of the main reflecting surface A and the auxiliary reflecting surface 204; the sub-reflecting surface 204 is rotated around its vertex so that the focal length of the antenna is constant, thereby adjusting the beam while ensuring the gain.
An embodiment of the utility model is illustrated with reference to fig. 1 and 7:
the automatic adjusting mechanism for the secondary surface of the communication antenna comprises a protective shell 101, a connecting seat 102 and an auxiliary reflecting surface 204, wherein the connecting seat 102 is connected with a main reflecting surface A of the Cassegrain antenna, the protective shell 101 is installed on the connecting seat 102, the auxiliary reflecting surface 204 is installed in the protective shell 101, the bottom of the auxiliary reflecting surface 204 is provided with a vertex, a control assembly capable of controlling the auxiliary reflecting surface 204 to use the vertex as a rotation center is arranged in the protective shell 101, and the control assembly is used for adjusting the state of coincidence of a focus point and a focal axis between the auxiliary reflecting surface 204 and the main reflecting surface A of the Cassegrain antenna
When the focus and the focal axis of the sub-reflecting surface 204 are superposed with the focus and the focal axis of the main reflecting surface a, the cassegrain antenna can be normally used; when the main reflecting surface a of the cassegrain antenna is displaced due to an external force or a natural factor, the position of the sub-reflecting surface 204 is corrected by the present mechanism.
Examples of the present invention are illustrated with reference to fig. 1 to 6:
control assembly includes motor control box 103, gear motor I301, I302 and II303 of gear, install mounting panel 201 in the protective housing 101, gear II303 passes through the rotation axis and connects on mounting panel 201, install gear motor I301 on the mounting panel 201, install I302 of gear on the output shaft of gear motor I301, I302 of gear is connected with II303 transmission of gear, and link 202 is installed at the downside of II303 of gear, rotates on link 202 and is connected with incomplete ring gear frame 203, and the lower extreme at incomplete ring gear frame 203 is installed to secondary reflecting surface 204, install motor control box 103 on the connecting seat 102, motor control box 103 passes through the wire with gear motor I301 and is connected.
When the gear II303 rotates, the connecting frame 202 and the whole set of components below are driven to rotate;
the virtual axes of the incomplete gear ring frame 203 and the gear II303 are superposed with the top point of the bottom of the auxiliary reflecting surface 204, and the focal axis superposition state between the auxiliary reflecting surface 204 and the main reflecting surface A of the Cassegrain antenna can be recovered by controlling the incomplete gear ring frame 203 and the gear II303 to rotate;
in the process, the Y-axis direction of the inclination angle is usually rotated, and then the X-axis direction of the horizontal angle is rotated;
when the main reflecting surface a is shifted, the position of the sub-reflecting surface 204 is corrected, and at this time, the sub-reflecting surface 204 is rotated around the vertex of the lower end thereof, so that the focal length of the antenna is constant, and the gain is ensured while the beam is adjusted.
Embodiments of the utility model are illustrated, see fig. 2 to 6:
the control assembly further comprises a speed reducing motor II 401 and a gear III 402, the speed reducing motor II 401 is mounted on the connecting frame 202, the gear III 402 is mounted on an output shaft of the speed reducing motor II 401, the gear III 402 is in transmission connection with the incomplete gear ring frame 203, and the motor control box 103 is connected with the speed reducing motor II 401 through a wire.
By starting the speed reduction motor II 401, the gear III 402 can drive the incomplete gear ring frame 203 to rotate by taking the axis of the gear III as an axis, and at the moment, the virtual axis of the incomplete gear ring frame 203 is overlapped with the vertex of the sub-reflecting surface, so that the sub-reflecting surface is controlled to rotate in the Y-axis pitching direction by taking the vertex as a rotation center.
Then, by starting the speed reduction motor I301, the gear I302 can drive the gear II303 to rotate by taking the axis of the gear II303 as an axis, and at the moment, the virtual axis of the gear II303 is overlapped with the vertex of the auxiliary reflection surface, so that the auxiliary reflection surface is controlled to rotate in the X-axis horizontal direction by taking the vertex as a rotation center.
The rotation in the XY-axis direction restores the state in which the focal axes are overlapped between the sub-reflecting surface 204 and the main reflecting surface a of the cassegrain antenna.
On the basis of the Cassegrain antenna, the vertex of the auxiliary reflecting surface is taken as an axial point to control the rotation of the auxiliary reflecting surface 204 so as to obtain a constant antenna focal length and ensure gain while adjusting the wave beam; the level capture system intercepts the level b in the ODU, obtains the difference from | a to b | level by comparing the level value a of the antenna when aligning, and feeds back the difference to the motor control box 103; the two speed reducing motors respectively control the auxiliary reflecting surface 204 to change the direction of the auxiliary reflecting surface by the axial direction of the incomplete gear ring frame 203 and the axial direction of the gear II303, and the position of the auxiliary reflecting surface is corrected, so that the direction of an antenna beam is changed, and the focus and the focal axis of the two are restored to a superposed state;
in this case, the correction range of the position of the sub-reflecting surface 204 is increased.
Embodiments of the utility model are illustrated with reference to fig. 3, 5 and 6:
the connecting frame 202 is formed by splicing two half connecting frames.
The two half-connecting frames can be spliced with each other to form the design of the connecting frame 202, so that the manufacturing effect and the subsequent maintenance convenience of the connecting frame 202 are improved.
Embodiments of the utility model are illustrated, see fig. 2 to 6:
the automatic secondary surface adjusting mechanism for the communication antenna further comprises an arc-shaped groove 501, a ball 502 and a thread jacking strip 503, the arc-shaped groove 501 is formed in each of the two sides of the incomplete gear ring frame 203, the ball 502 is connected in the arc-shaped groove 501 in a sliding mode, the relative position between the ball 502 and the connecting frame 202 is limited through the thread jacking strip 503, and the thread jacking strip 503 is connected with the connecting frame 202 in a threaded mode.
The arc-shaped groove 501 forms a track of the ball 502, then the ball 502 is tightly propped against the incomplete gear ring frame 203 through the thread propping strip 503, and the gap distance between the two sides of the connecting frame 202 and the incomplete gear ring frame 203 is adjusted by adjusting the thread propping strips 503 on the two sides, so that the fine adjustment effect is realized.
Claims (5)
1. A vice face automatic adjustment mechanism for communication antenna which characterized in that: including protective housing (101), connecting seat (102) and subreflector (204), connecting seat (102) link to each other with main plane of reflection (A) of cassegrain formula antenna, install protective housing (101) on connecting seat (102), install subreflector (204) in protective housing (101), the bottom of subreflector (204) is equipped with the summit, be provided with in protective housing (101) and control assembly that can control subreflector (204) and use the summit as rotation center, this control assembly is used for adjusting focus, the state of focal axis coincidence between subreflector (204) and the main plane of reflection (A) of cassegrain formula antenna.
2. The automatic adjustment mechanism for a secondary surface of a communication antenna according to claim 1, wherein: control assembly includes motor control box (103), gear I (301), I (302) of gear and gear II (303), install mounting panel (201) in protective housing (101), gear II (303) are connected on mounting panel (201) through the rotation axis, install gear I (301) on mounting panel (201), install gear I (302) on the output shaft of gear I (301), gear I (302) is connected with gear II (303) transmission, the downside at gear II (303) is installed in link (202), it is connected with incomplete ring gear frame (203) to rotate on link (202), the lower extreme at incomplete ring gear frame (203) is installed in subreflector (204), install motor control box (103) on connecting seat (102), motor control box (103) pass through the wire with gear I (301) and are connected.
3. A mechanism for automatically adjusting a secondary facet of a communications antenna, as defined by claim 2, wherein: the control assembly further comprises a speed reducing motor II (401) and a gear III (402), the speed reducing motor II (401) is installed on the connecting frame (202), the gear III (402) is installed on an output shaft of the speed reducing motor II (401), the gear III (402) is in transmission connection with the incomplete gear ring frame (203), and the motor control box (103) is connected with the speed reducing motor II (401) through a wire.
4. A mechanism for automatically adjusting a secondary surface of a communication antenna according to claim 3 or 2, wherein: the connecting frame (202) is formed by splicing two half connecting frames.
5. The automatic adjustment mechanism for a secondary surface of a communication antenna according to claim 4, wherein: still include arc slot (501), ball (502), tight strip of screw thread top (503), the both sides of incomplete ring gear frame (203) all are equipped with arc slot (501), and sliding connection has ball (502) in arc slot (501), and the relative position between ball (502) and link (202) restricts through tight strip of screw thread top (503), and threaded connection between tight strip of screw thread top (503) and link (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122532722.XU CN215816436U (en) | 2021-10-19 | 2021-10-19 | Automatic secondary surface adjusting mechanism for communication antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122532722.XU CN215816436U (en) | 2021-10-19 | 2021-10-19 | Automatic secondary surface adjusting mechanism for communication antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816436U true CN215816436U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122532722.XU Active CN215816436U (en) | 2021-10-19 | 2021-10-19 | Automatic secondary surface adjusting mechanism for communication antenna |
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| CN (1) | CN215816436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066293A1 (en) * | 2022-09-30 | 2024-04-04 | 中兴通讯股份有限公司 | Adjusting mechanism for antenna auxiliary reflective surface, antenna, and method for adjusting antenna auxiliary reflective surface |
-
2021
- 2021-10-19 CN CN202122532722.XU patent/CN215816436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066293A1 (en) * | 2022-09-30 | 2024-04-04 | 中兴通讯股份有限公司 | Adjusting mechanism for antenna auxiliary reflective surface, antenna, and method for adjusting antenna auxiliary reflective surface |
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