CN210668695U - Phase-shifting transmission structure and antenna thereof - Google Patents
Phase-shifting transmission structure and antenna thereof Download PDFInfo
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- CN210668695U CN210668695U CN201921025496.2U CN201921025496U CN210668695U CN 210668695 U CN210668695 U CN 210668695U CN 201921025496 U CN201921025496 U CN 201921025496U CN 210668695 U CN210668695 U CN 210668695U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 114
- 239000000126 substance Substances 0.000 claims description 3
- 230000010363 phase shift Effects 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 3
- 230000009191 jumping Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to an antenna equipment technical field, concretely relates to phase shift transmission structure drives, the first planetary gear train that forms through location power shaft drive, positioning gear and first tooth carries out the transmission location, and the power shaft drives the first transmission gear of power gear engagement to conduct power to second transmission gear, third transmission gear, lead screw gear in proper order, finally conduct power to the lead screw enterprising and realize the control to the part that shifts the phase. The high integration phase-shifting transmission structure reduces the volume of the phase-shifting mechanism; the switching among the transmission screw rods is carried out through the planetary gear system, and the switching path is shortened; the simple gear structure is used for transmission, so that the stability is high; and the characteristics of short gear shaft, enough rigidity, stable transmission and the like are utilized to realize no gear jumping.
Description
Technical Field
The utility model relates to an antenna equipment technical field, concretely relates to phase shift transmission structure and antenna thereof.
Background
In the field of antenna equipment, it is generally necessary to adjust the downtilt of an antenna. In the common method in the prior art, a phase-shifting transmission structure is arranged in an antenna, and a lead screw or the cooperation of the lead screw and a transmission rod is used for driving a phase-shifting part to move.
However, the inventors have found that the approaches used in the prior art have at least the following drawbacks:
1. the lead screw needs a larger stroke for multi-axis conversion;
2. the tooth shaft is too long, the rigidity is insufficient, and the tooth is easy to jump under stress;
3. the total length of the product is too long, and the integration level is low.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a phase shift transmission structure and antenna thereof, can realize the multiaxis conversion in the short stroke, not only avoid appearing the dislocation and be difficult to jump the tooth, have higher integrated level.
The utility model provides a technical scheme that its technical problem adopted is: a phase shift transmission structure comprises a supporting seat, a power shaft, a positioning transmission shaft and a plurality of screw rods; wherein the content of the first and second substances,
a first gear ring is arranged on the supporting seat;
the power shaft is fixedly connected with a power gear;
the positioning transmission shaft is fixedly connected with a positioning transmission gear, a transmission shaft sleeve is sleeved on the positioning transmission shaft, a first transmission gear and a second transmission gear are fixedly installed on the transmission shaft sleeve, and the first transmission gear is meshed with the power gear;
the screw rod is rotatably connected with the supporting seat, and a screw rod gear is fixedly arranged on the screw rod;
the positioning gear is respectively meshed with the first gear ring and the positioning transmission gear, a positioning shaft is fixed on the positioning gear, a third transmission gear is sleeved on the positioning shaft, and the third transmission gear is meshed with the second transmission gear;
the positioning transmission shaft can drive the positioning shaft to move, so that the third transmission gear is meshed with one of the screw rod gears.
Furthermore, the phase-shifting transmission structure further comprises a limiting seat, a second gear ring matched with the first gear ring is arranged on the limiting seat, a limiting transmission gear is rotatably arranged on the transmission shaft sleeve, a limiting gear is arranged between the limiting transmission gear and the second gear ring, and the limiting gear is respectively meshed with the limiting transmission gear and the second gear ring.
Furthermore, the number of the screw rods is 2-6.
Further, still include the elasticity piece that resets, the lead screw number is 6.
Further, the lead screw equidistance sets up on the supporting seat.
Compared with the prior art, the scheme has the advantages that the positioning power shaft drives the first planetary gear train formed by the positioning gear and the first tooth to perform transmission positioning, the power shaft drives the power gear n to be meshed with the first transmission gear, power is transmitted to the second transmission gear, the third transmission gear and the screw rod gear at one time, and finally the power is transmitted to the screw rod to realize control over the phase shifting part. The high integration phase-shifting transmission structure reduces the volume of the phase-shifting mechanism; the switching among the transmission screw rods is carried out through the planetary gear system, and the switching path is shortened; the simple gear structure is used for transmission, so that the stability is high; and the characteristics of short gear shaft, enough rigidity, stable transmission and the like are utilized to realize no gear jumping.
Drawings
FIG. 1 is a schematic view of a positioning and transmission component according to a preferred embodiment of the present invention;
FIG. 2 is an exploded view of the positioning and transmission components of the preferred embodiment of the present invention;
FIG. 3 is a schematic view of the second planetary gear assembly according to the preferred embodiment of the present invention;
fig. 4 is an assembly diagram of the limit transmission gear according to the preferred embodiment of the present invention.
Fig. 5 is a schematic view of the overall structure of the preferred embodiment of the present invention.
The reference numerals in the figures illustrate:
10. a supporting seat; 11. a first ring gear; 20. a screw rod; 21. a screw gear; 30. a power shaft; 31. a power gear; 32. a first drive gear; 33. a drive shaft; 34. a second transmission gear; 35. a third transmission gear; 40. positioning the transmission shaft; 41. positioning the transmission gear; 42. Positioning the shaft; 43. positioning a gear; 50. a limiting seat; 51. a second ring gear; 60. a limiting transmission gear; 61. and a limit gear.
Detailed Description
The preferred embodiment of the present invention will now be described in detail with reference to the accompanying fig. 1-5.
As shown in fig. 1-2, comprises a support base 10, a power shaft 30, a positioning transmission shaft 40 and a plurality of screw rods 20; the number of the screw rods 20 is 2-6, the preferable number of the screw rods 20 is 6, and the screw rods 20 are equidistantly arranged on the supporting seat 10; wherein the content of the first and second substances,
a first gear ring 11 is arranged on the support seat 10;
a power gear 31 is fixedly connected to the power shaft 30;
a positioning transmission gear 41 is fixedly connected to the positioning transmission shaft 40, a transmission shaft sleeve 33 is sleeved on the positioning transmission shaft 40, a first transmission gear 32 and a second transmission gear 34 are fixedly installed on the transmission shaft sleeve 33, and the first transmission gear 32 is meshed with the power gear 31;
the screw rod 20 is rotatably connected with the support seat 10, and a screw rod gear 21 is fixedly arranged on the screw rod 20;
the positioning device further comprises a positioning gear 43, the positioning gear 43 is respectively meshed with the first gear ring 11 and the positioning transmission gear 41, a positioning shaft 42 is fixed on the positioning gear 43, a third transmission gear 35 is sleeved on the positioning shaft 42, and the third transmission gear 35 is meshed with the second transmission gear 34;
the positioning transmission shaft 40 can drive the positioning shaft 42 to move, so that the third transmission gear 35 is meshed with one of the lead screw gears 21.
In the embodiment, the power shaft 30 and the positioning transmission shaft 40 are respectively externally connected with an external power source for driving, the external power source is preferably a motor, the motor conducts power through the positioning transmission shaft 40 to drive a first planetary gear train consisting of the positioning transmission gear 41, the positioning gear 43 and the first gear ring 11 to convey the third transmission gear 35 to a specified position, so that the third transmission gear 35 can be meshed with the target screw rod gear 21; then another motor drives the power shaft 30 to drive the power gear 31 fixedly installed thereon to rotate, the power gear 31 rotates, engages with the first transmission gear 32 to drive the second transmission gear 34 to rotate, then the second transmission gear 34 engages with the third transmission gear 35, and the third transmission gear 35 rotates to transmit power to the target screw rod gear 21 engaged therewith, so as to drive the corresponding screw rod 20 to rotate.
As shown in fig. 3-5, as an alternative embodiment of the present invention, a second planetary gear train composed of a limiting transmission gear 60, a limiting gear 61 and a second ring gear 51 is additionally arranged to cooperate with the first planetary gear train for fixing. Specifically, the phase shift transmission structure further comprises a limiting seat 50, a second gear ring 51 matched with the first gear ring 11 is arranged on the limiting seat 50, a limiting transmission gear 60 is rotatably mounted on the transmission shaft sleeve 33, a limiting gear 61 is arranged between the limiting transmission gear 60 and the second gear ring 51, and the limiting gear 61 is respectively meshed with the limiting transmission gear 60 and the second gear ring 51.
So, limit drive gear 60 cooperation second ring gear 51 for limit gear 61 with positioning gear 43 coaxial motion, limit gear 61 fixed mounting is on location axle 42, and limit gear 61 forms two strong points with positioning gear 43, and the transmission process is more firm.
As a second aspect of the present invention, there is provided an antenna provided with the phase shift transmission structure as described above.
Through the utility model discloses an implement, can bring following beneficial effect:
1. the phase-shifting transmission structure is highly integrated, so that the volume of the phase-shifting mechanism is reduced;
2. the switching among the transmission screw rods is carried out through the planetary gear system, and the switching path is shortened;
3. two groups of planetary gears are used, so that multi-point support is realized, and the stability of power transmission is improved;
4. the gear shaft is short, the rigidity is enough, the transmission is stable, and the gear jumping cannot occur.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and all such modifications and alterations should fall within the scope of the appended claims.
Claims (6)
1. A phase-shifting transmission structure is characterized in that: comprises a supporting seat (10), a power shaft (30), a positioning transmission shaft (40) and a plurality of screw rods (20); wherein the content of the first and second substances,
a first gear ring (11) is arranged on the supporting seat (10);
a power gear (31) is fixedly connected to the power shaft (30);
a positioning transmission gear (41) is fixedly connected to the positioning transmission shaft (40), a transmission shaft sleeve (33) is sleeved on the positioning transmission shaft (40), a first transmission gear (32) and a second transmission gear (34) are fixedly installed on the transmission shaft sleeve (33), and the first transmission gear (32) is meshed with the power gear (31);
the screw rod (20) is rotatably connected with the supporting seat (10), and a screw rod gear (21) is fixedly arranged on the screw rod (20);
the positioning device is characterized by further comprising a positioning gear (43), wherein the positioning gear (43) is respectively meshed with the first gear ring (11) and the positioning transmission gear (41), a positioning shaft (42) is fixed on the positioning gear (43), a third transmission gear (35) is sleeved on the positioning shaft (42), and the third transmission gear (35) is meshed with the second transmission gear (34);
the positioning transmission shaft (40) can drive the positioning shaft (42) to move, so that the third transmission gear (35) is meshed with one screw rod gear (21).
2. The phase-shifting transmission structure according to claim 1, further comprising a limiting seat (50), wherein a second gear ring (51) matched with the first gear ring (11) is arranged on the limiting seat (50), a limiting transmission gear (60) is rotatably mounted on the transmission shaft sleeve (33), a limiting gear (61) is arranged between the limiting transmission gear (60) and the second gear ring (51), and the limiting gear (61) is respectively meshed with the limiting transmission gear (60) and the second gear ring (51).
3. The phase-shifting transmission structure according to any one of claims 1-2, wherein the number of the screw rods (20) is 2-6.
4. The phase-shifting transmission structure according to claim 3, wherein the number of the screw rods (20) is 6.
5. The phase shifting transmission structure according to claim 4, wherein the lead screws (20) are arranged on the support base (10) at equal intervals.
6. An antenna provided with a phase shifting transmission structure according to any one of claims 1-2 or 4-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025496.2U CN210668695U (en) | 2019-07-03 | 2019-07-03 | Phase-shifting transmission structure and antenna thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025496.2U CN210668695U (en) | 2019-07-03 | 2019-07-03 | Phase-shifting transmission structure and antenna thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210668695U true CN210668695U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921025496.2U Active CN210668695U (en) | 2019-07-03 | 2019-07-03 | Phase-shifting transmission structure and antenna thereof |
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| CN (1) | CN210668695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112563691A (en) * | 2021-02-20 | 2021-03-26 | 京信通信技术(广州)有限公司 | Multi-frequency antenna and frequency-selecting phase-shifting device thereof |
-
2019
- 2019-07-03 CN CN201921025496.2U patent/CN210668695U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112563691A (en) * | 2021-02-20 | 2021-03-26 | 京信通信技术(广州)有限公司 | Multi-frequency antenna and frequency-selecting phase-shifting device thereof |
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Effective date of registration: 20240401 Granted publication date: 20200602 |