CN219874023U - Direction transmission device capable of tracking vehicle-mounted satellite communication antenna through top - Google Patents
Direction transmission device capable of tracking vehicle-mounted satellite communication antenna through top Download PDFInfo
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- CN219874023U CN219874023U CN202321065558.9U CN202321065558U CN219874023U CN 219874023 U CN219874023 U CN 219874023U CN 202321065558 U CN202321065558 U CN 202321065558U CN 219874023 U CN219874023 U CN 219874023U
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- azimuth
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- satellite communication
- bevel gear
- shaped turntable
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- 238000004891 communication Methods 0.000 title claims abstract description 36
- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000013585 weight reducing agent Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses an azimuth transmission device capable of tracking a vehicle-mounted satellite communication antenna through a top. The device comprises an azimuth base, a first four-point contact ball bearing, a second four-point contact ball bearing, an azimuth bevel gear, a bearing, a center shaft, a wedge-shaped turntable bevel gear and a supporting plate; wherein the azimuth base is fixed on the carrier; the wedge-shaped turntable is arranged on the azimuth base through a first four-point contact ball bearing, and a second four-point contact ball bearing is arranged on the wedge-shaped turntable; the center position of the wedge-shaped turntable is provided with a center shaft, the center shaft is provided with an azimuth bevel gear, the azimuth bevel gear is provided with a bearing, the bearing is provided with a supporting plate, and the supporting plate is used for installing a vehicle-mounted satellite communication antenna. The utility model can realize the global tracking of the antenna and has the advantages of light weight, small volume, high transmission efficiency, low system power and high structural member strength.
Description
Technical Field
The utility model relates to the technical field of vehicle-mounted satellite communication antennas, in particular to an azimuth transmission device capable of tracking a vehicle-mounted satellite communication antenna through a top.
Background
Currently, satellite communication technology in China is mature, and various satellite communication terminal products such as handheld and vehicle-mounted satellite communication terminals have realized the functions of dialing satellite phones and receiving and sending satellite short messages, and the products are different in form and have various characteristics. On the one hand, compared with the characteristics of small size and portability of the handheld satellite communication terminal, the vehicle-mounted satellite communication terminal generally adopts a rack type design, has larger size and can be arranged on a standard rack of 19 inches, and the hardware design structure leaves space for the vehicle-mounted satellite communication terminal system to expand the communication function; on the other hand, the ad hoc network communication technology has the advantages of no center, self-organization, quick deployment and the like, and can be suitable for sudden and temporary regional mobile communication application scenes by embedding an ad hoc network communication system in a vehicle-mounted satellite communication terminal, so as to realize the regional wireless communication application requirements.
Today, the communication technology is continuously developed day by day, and the requirements of satellite communication antennas are also increasing. The traditional 2.4-meter vehicle-mounted static medium-pass antenna can track communication WeChat only through the movement in the azimuth direction and the pitching direction, when the satellite is positioned right above the antenna, the antenna needs overhead tracking, and the antenna surface rotates to the direction of a target satellite navigation shortcut point, because of the limitation of a structural form, the working angle of the antenna surface is positioned in a blind cone, and the antenna cannot always overhead in time, so that signals are lost.
Disclosure of Invention
The utility model aims to provide an azimuth transmission device of a vehicle-mounted satellite communication antenna, which can realize the adjustment of the antenna gesture before the antenna is overturned, enable the antenna to have overtravel capability and ensure the global tracking of the antenna.
The technical solution for realizing the purpose of the utility model is as follows: the azimuth transmission device comprises an azimuth base, a first four-point contact ball bearing, a second four-point contact ball bearing, an azimuth bevel gear, a bearing, a center shaft, a wedge-shaped turntable bevel gear and a supporting plate;
the azimuth base is fixed on the carrier; the wedge-shaped turntable is arranged on the azimuth base through a first four-point contact ball bearing, and a second four-point contact ball bearing is arranged on the wedge-shaped turntable; the center position of the wedge-shaped turntable is provided with a center shaft, the center shaft is provided with an azimuth bevel gear, the azimuth bevel gear is provided with a bearing, the bearing is provided with a supporting plate, and the supporting plate is used for installing a vehicle-mounted satellite communication antenna.
Further, the azimuth bevel gear comprises an azimuth motor, an azimuth large cone gear and an azimuth small bevel gear;
the azimuth motor is directly installed on one side of the supporting plate through a screw, the azimuth large cone gear is fixed on the azimuth base, the azimuth small bevel gear is fixed at the output end of the azimuth motor, and when the azimuth motor works, the azimuth large cone gear and the azimuth small bevel gear are meshed with each other, so that the antenna is driven to integrally rotate in 360 degrees.
Further, the wedge-shaped turntable comprises a wedge-shaped piece, a wedge-shaped turntable motor, a wedge-shaped turntable large bevel gear and a wedge-shaped turntable small bevel gear;
the wedge-shaped turntable motor is fixed on one side of the azimuth base through a screw, and is fixed on the motor output shaft through a key, a small bevel gear of the wedge-shaped turntable at the motor shaft end of the wedge-shaped turntable is meshed with a large bevel gear of the wedge-shaped turntable fixed on the lower side of the wedge-shaped piece, and the wedge-shaped piece has an inclination angle of 7 degrees with the horizontal direction, so that the antenna surface above the wedge-shaped piece is driven to deflect in the transverse rolling direction, and satellite phenomenon is avoided when the antenna needs to be overturned.
Furthermore, the azimuth base and the carrier are fixed by adopting M15 external hexagonal combined screws, so that the installation and the disassembly are convenient.
Further, a laminated structure is adopted between the wedge-shaped turntable and the azimuth base, and the wedge-shaped turntable and the azimuth base are connected through a first four-point contact ball bearing and a second four-point contact ball bearing, so that relative rotation can be carried out between the wedge-shaped turntable and the azimuth base.
Further, the wedge-shaped turntable is connected with the supporting plate through double-row four-point basic bearings, so that smoothness and continuity of movement of the antenna main body are guaranteed.
Further, the bearing outer ring and the wedge piece are fixed by adopting screws, and the bearing inner ring and the support plate bracket are fixed by adopting screws.
Further, the azimuth base is formed by integrally casting and milling LY12 cast aluminum bars with the diameter of 650 mm.
Further, the support plate and the wedge piece are integrally milled by LY12-CZ aluminum alloy.
Furthermore, the middle parts of the azimuth base, the supporting plate and the wedge-shaped piece are hollowed into ribs, so that weight reduction is realized, and meanwhile, the strength of the structure is enhanced.
Compared with the prior art, the utility model has the remarkable advantages that: (1) The transmission design of the wedge-shaped turntable is added, so that the antenna has 7 degrees of deflection at maximum in the transverse rolling direction, the attitude of the antenna can be adjusted before the antenna is overturned, the high point of the wedge-shaped turntable is rotated to the direction of the navigation shortcut point of the target satellite orbit before the target satellite is overturned, and the antenna works outside the blind cone, so that the global tracking of the antenna is ensured; (2) The main structural part is formed by casting or milling LY12 aluminum alloy, so that the weight of the antenna is reduced on the premise of ensuring the strength of the structural part; (3) When the antenna is stored, the wedge-shaped turntable can be rotated to a preset position, and the whole height of the antenna is not increased; (4) The azimuth base and the wedge-shaped turntable are driven by bevel gears arranged in the base, so that the installation space is saved, the transmission efficiency is high, and the system power is reduced; (5) The hollow middle part of the large structural member is in a rib shape, so that the structural member strength is enhanced while weight reduction is realized.
Drawings
FIG. 1 is a schematic diagram of an azimuth drive device for an overhead tracking vehicle satellite communications antenna according to the present utility model.
Fig. 2 is a schematic diagram of an assembly structure of the azimuth base in the present utility model.
Fig. 3 is a schematic view of the construction of the bevel square gear of the present utility model.
Fig. 4 is a schematic view of a wedge-shaped turntable according to the present utility model.
Fig. 5 is a schematic view of the wedge structure of the present utility model.
Fig. 6 is a schematic structural view of the azimuth base of the present utility model.
Fig. 7 is a schematic structural view of a support plate according to the present utility model.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific examples.
Referring to fig. 1, the azimuth driving device of the overhead tracking vehicle-mounted satellite communication antenna comprises an azimuth base 1, a first four-point contact ball bearing 2, a second four-point contact ball bearing 3, an azimuth bevel gear 4, a bearing 5, a center shaft 6, a wedge-shaped turntable 7, a wedge-shaped turntable bevel gear 8 and a supporting plate 9;
with reference to fig. 2, the azimuth base 1 is the only supporting structure of the whole machine, and is used for completing the mechanical installation of the antenna and the carrier and bearing the whole antenna system; the azimuth base 1 is fixed on a carrier; the wedge-shaped turntable 7 is arranged on the azimuth base 1 through a first four-point contact ball bearing 2, and a second four-point contact ball bearing 3 is arranged on the wedge-shaped turntable 7; the center of the wedge-shaped turntable 7 is provided with a center shaft 6, the center shaft 6 is provided with an azimuth bevel gear 4, the azimuth bevel gear 4 is provided with a bearing 5, the bearing 5 is provided with a supporting plate 9, and the supporting plate 9 is used for installing a vehicle-mounted satellite communication antenna.
Further, referring to fig. 3, the azimuth bevel gear 4 includes an azimuth motor 4-1, an azimuth large bevel gear 4-2 and an azimuth small bevel gear 4-3;
the azimuth motor 4-1 is directly installed on one side of the supporting plate 9 through a screw, the azimuth big cone gear 4-2 is fixed on the azimuth base 1, the azimuth small bevel gear 4-3 is fixed at the output end of the azimuth motor 4-1, and when the azimuth motor 4-1 works, the azimuth big cone gear 4-2 and the azimuth small bevel gear 4-3 are meshed with each other, so that the antenna is driven to integrally rotate in 360 degrees.
Further, with reference to fig. 4 and 5, the wedge-shaped turntable 7 comprises a wedge-shaped piece 7-1, a wedge-shaped turntable motor 7-2, a wedge-shaped turntable large bevel gear 7-3 and a wedge-shaped turntable small bevel gear 7-4;
the wedge-shaped turntable motor 7-2 is fixed on one side of the azimuth base 1 through a screw, and is fixed on an output shaft of the motor through a key, the small bevel gear 7-4 of the wedge-shaped turntable at the shaft end of the wedge-shaped turntable motor 7-2 is meshed with the large bevel gear 7-3 of the wedge-shaped turntable fixed on the lower side of the wedge-shaped piece 7-1, and the wedge-shaped piece 7-1 has an inclination angle of 7 degrees with the horizontal direction, so that the upper antenna surface is driven to deflect in the transverse rolling direction, and the phenomenon that satellites are lost when the antenna needs to be overturned is avoided.
Furthermore, the azimuth base 1 and the carrier are fixed by adopting M15 external hexagonal combination screws, so that the installation and the disassembly are convenient.
Further, a laminated structure is adopted between the wedge-shaped turntable 7 and the azimuth base 1, and the wedge-shaped turntable 7 and the azimuth base 1 can relatively rotate through the connection of the first four-point contact ball bearing 2 and the second four-point contact ball bearing 3.
Further, the wedge-shaped turntable 7 is connected with the supporting plate 9 through double-row four-point basic bearings, so that the smoothness and continuity of the movement of the antenna main body are ensured.
Further, the outer ring of the bearing 5 is fixed with the wedge-shaped piece 7-1 by adopting a screw, and the inner ring of the bearing 5 is fixed with the support of the support plate 9 by adopting a screw.
Further, the azimuth base 1 is formed by integrally casting and milling LY12 cast aluminum bars with the diameter of 650 mm.
Further, the supporting plate 9 and the wedge-shaped piece 7-1 are integrally milled by LY12-CZ aluminum alloy.
Further, in combination with fig. 5, 6 and 7, the middle parts of the azimuth base 1, the supporting plate 9 and the wedge-shaped piece 7-1 are hollowed out to be in a rib shape, so that the weight is reduced, and meanwhile, the strength of the structure is enhanced.
The antenna structure adopts an A-A' -E (azimuth-elevation) structure, and meanwhile, a wedge-shaped turntable 7 is added to realize the over-top tracking of the low orbit target satellite in the antenna. Because the azimuth rotating speed is 20 degrees/s, the total azimuth transmission efficiency is improved while the azimuth rotating speed is satisfied, and the excessive power selection of the Lee azimuth motor is avoided; the azimuth transmission chain adopts a driving mode of planetary speed reducer and bevel gear pair transmission; in order to reduce the overall size of the antenna during loading, the transmission mechanism is designed in the azimuth rotating shaft cavity.
When the antenna device works, under the drive of the wedge-shaped turntable motor 7-2, the wedge-shaped turntable 7 can rotate around the shaft by 360 degrees, so that the posture of the antenna can be adjusted before the antenna is overturned, the antenna can incline in any direction, the inclination angle can reach 7 degrees at maximum, and a target satellite passing over the antenna from any direction can be captured. Before the antenna needs to be overturned, the wedge-shaped turntable 7 is rotated to a required angle, so that the antenna always faces the navigation point direction of the target satellite orbit, the antenna is always within the blind cone angle, the antenna has no tracking blind area, the condition of losing satellites is avoided, and the locking tracking of the target satellite in any direction under the overtravel state is ensured.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. The azimuth transmission device capable of tracking the vehicle-mounted satellite communication antenna through the top is characterized by comprising an azimuth base (1), a first four-point contact ball bearing (2), a second four-point contact ball bearing (3), an azimuth bevel gear (4), a bearing (5), a center shaft (6), a wedge-shaped turntable (7), a wedge-shaped turntable bevel gear (8) and a supporting plate (9);
the azimuth base (1) is fixed on the carrier; the wedge-shaped turntable (7) is arranged on the azimuth base (1) through a first four-point contact ball bearing (2), and a second four-point contact ball bearing (3) is arranged on the wedge-shaped turntable (7); the center position of the wedge-shaped turntable (7) is provided with a center shaft (6), the center shaft (6) is provided with an azimuth bevel gear (4), the azimuth bevel gear (4) is provided with a bearing (5), the bearing (5) is provided with a supporting plate (9), and the supporting plate (9) is used for installing a vehicle-mounted satellite communication antenna.
2. The azimuth drive device of an overhead tracking vehicle-mounted satellite communication antenna according to claim 1, wherein the azimuth bevel gear (4) comprises an azimuth motor (4-1), an azimuth megavertebral gear (4-2) and an azimuth bevel pinion (4-3);
the azimuth motor (4-1) is directly installed on one side of the supporting plate (9) through a screw, the azimuth big cone gear (4-2) is fixed on the azimuth base (1), the azimuth small cone gear (4-3) is fixed at the output end of the azimuth motor (4-1), and when the azimuth motor (4-1) works, the azimuth big cone gear (4-2) and the azimuth small cone gear (4-3) are meshed with each other, so that the antenna is driven to integrally rotate in 360 degrees.
3. The azimuth drive device of an overhead tracking vehicle-mounted satellite communication antenna according to claim 1, wherein the wedge turntable (7) comprises a wedge (7-1), a wedge turntable motor (7-2), a wedge turntable large bevel gear (7-3) and a wedge turntable small bevel gear (7-4);
the wedge-shaped turntable motor (7-2) is fixed on one side of the azimuth base (1) through a screw, and is fixed on an output shaft of the motor through a key, a small bevel gear (7-4) of the wedge-shaped turntable at the shaft end of the wedge-shaped turntable motor (7-2) is meshed with a large bevel gear (7-3) of the wedge-shaped turntable fixed on the lower side of the wedge-shaped piece (7-1), and the wedge-shaped piece (7-1) has an inclination angle of 7 degrees with the horizontal direction, so that the upper antenna surface is driven to deflect in the transverse rolling direction, and satellite phenomenon is avoided when the antenna needs to be overturned.
4. The azimuth driving device of the over-roof tracking vehicle-mounted satellite communication antenna according to claim 1, wherein the azimuth base (1) and the carrier are fixed by adopting M15 external hexagonal combination screws, so that the installation and the disassembly are convenient.
5. The azimuth transmission device of the vehicle-mounted satellite communication antenna capable of tracking through the top according to claim 1, wherein a laminated structure is adopted between the wedge-shaped turntable (7) and the azimuth base (1), and the wedge-shaped turntable (7) and the azimuth base (1) can relatively rotate through connection of the first four-point contact ball bearing (2) and the second four-point contact ball bearing (3).
6. The azimuth transmission device of the vehicle-mounted satellite communication antenna capable of tracking through the top according to claim 1, wherein the wedge-shaped turntable (7) is connected with the supporting plate (9) through double-row four-point basic bearings, so that the smoothness and the continuity of the movement of the antenna main body are ensured.
7. The azimuth transmission device of the vehicle-mounted satellite communication antenna capable of tracking through the top according to claim 1, wherein the outer ring of the bearing (5) is fixed with the wedge-shaped piece (7-1) by adopting a screw, and the inner ring of the bearing (5) is fixed with the support of the support plate (9) by adopting a screw.
8. The azimuth driving device of the over-roof tracking vehicle-mounted satellite communication antenna according to claim 1, wherein the azimuth base (1) is formed by integrally casting and milling LY12 cast aluminum bars with the diameter of 650 mm.
9. The azimuth drive device of an over-roof trackable vehicle satellite communication antenna according to claim 1, wherein the support plate (9) and the wedge (7-1) are integrally milled from LY12-CZ aluminium alloy.
10. The azimuth transmission device capable of tracking the vehicle-mounted satellite communication antenna through the top according to claim 1, wherein the middle parts of the azimuth base (1), the supporting plate (9) and the wedge-shaped piece (7-1) are hollowed out to be in a rib shape, so that weight reduction is realized, and meanwhile, the strength of a structural member is enhanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321065558.9U CN219874023U (en) | 2023-05-06 | 2023-05-06 | Direction transmission device capable of tracking vehicle-mounted satellite communication antenna through top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321065558.9U CN219874023U (en) | 2023-05-06 | 2023-05-06 | Direction transmission device capable of tracking vehicle-mounted satellite communication antenna through top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219874023U true CN219874023U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321065558.9U Active CN219874023U (en) | 2023-05-06 | 2023-05-06 | Direction transmission device capable of tracking vehicle-mounted satellite communication antenna through top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219874023U (en) |
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2023
- 2023-05-06 CN CN202321065558.9U patent/CN219874023U/en active Active
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