CN111969292B - Compact radar antenna revolving stage - Google Patents
Compact radar antenna revolving stage Download PDFInfo
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- CN111969292B CN111969292B CN202010761824.6A CN202010761824A CN111969292B CN 111969292 B CN111969292 B CN 111969292B CN 202010761824 A CN202010761824 A CN 202010761824A CN 111969292 B CN111969292 B CN 111969292B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
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Abstract
The invention relates to a compact radar antenna rotary table which comprises an azimuth adjusting unit and a pitching adjusting unit. The azimuth adjusting unit comprises a shell, a disc type motor, a gear transmission mechanism, an output flange, a collecting ring and an encoder; gear drive includes the driving gear, change gear assembly, driven gear, driving gear fixed mounting is on disc motor's output shaft to be connected with driven gear transmission through change gear assembly, the fixed suit of driven gear is in the output flange outside, the lower extreme and the shell rotatable coupling of output flange, the shell is stretched out to the upper end, the collector ring sets up in the cavity intracavity of output flange, encoder driving disk and driven gear's lower fixed surface is connected. The pitching adjusting unit comprises a supporting seat, a pitching shaft, a tightening ring for mounting the radar antenna and a locking mechanism; supporting seat fixed mounting is in output flange upper end, and the tight hoop both ends are articulated with the supporting seat through every single move axle respectively, and locking mechanism is used for the every single move gesture of fixed tight hoop.
Description
Technical Field
The invention relates to a compact radar antenna turntable.
Background
The radar antenna rotary table is commonly used in field mapping equipment, and accurate tracking and data measurement of a target are completed by driving the radar antenna to adjust the posture. The radar antenna rotary table generally requires small volume, light weight, low energy consumption and high positioning accuracy, and meanwhile, in order to adapt to the severe outdoor weather conditions, the rotary table also needs to have strong overturn prevention capacity and high protection level and has interfaces for fast installation with other equipment (antennas and triangular supports). Patent CN 109149111A discloses a directly drive radar revolving stage, adopts torque motor to directly drive the mode of output shaft, and the structure is fairly simple, but is difficult to realize the requirement of portable revolving stage to size, weight, consumption. Patent CN 208000996U discloses a radar steering seat, which adopts a mode that a servo motor is matched with a planetary reducer, the output torque of the system is large, the control precision is high, but the requirements of a portable turntable on the size and the weight are difficult to realize.
Disclosure of Invention
The invention aims to solve the problems that a radar antenna rotary table in the prior art is difficult to meet the requirements of small size, light weight and portability, and provides a compact radar antenna rotary table.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a compact radar antenna revolving stage which is characterized in that:
comprises an azimuth adjusting unit and a pitching adjusting unit;
the azimuth adjusting unit comprises a shell, a disc type motor, a gear transmission mechanism, an output flange, a collecting ring and an encoder;
the disc type motor and the gear transmission mechanism are positioned in the shell;
the gear transmission mechanism comprises a driving gear, a speed change gear assembly and a driven gear;
the driving gear is fixedly arranged on an output shaft of the disc type motor and is in transmission connection with the driven gear through a speed change gear assembly; the driven gear is fixedly sleeved on the outer side of the output flange;
the lower end of the output flange is positioned in the shell and is rotatably connected with the shell, and the upper end of the output flange extends out of the shell;
the collector ring is arranged in a hollow cavity of the output flange and is in clearance fit with the output flange, the lower end of the collector ring is fixedly connected with the shell, and the upper end of the collector ring extends out of the shell and the upper end of the output flange;
The encoder comprises a movable disc and a static disc which are coaxially arranged from top to bottom in sequence, the movable disc and the static disc are sleeved outside the output flange, the movable disc is fixedly connected with the lower surface of the driven gear, and the static disc is fixedly connected with the shell;
the pitching adjusting unit comprises a supporting seat, a pitching shaft, a tightening ring for mounting the radar antenna and a locking mechanism;
the supporting seat is fixedly arranged at the upper end of the output flange, and a through hole for the converging ring to pass through is formed in the supporting seat;
two ends of the tightening hoop are hinged with the supporting seat through a pitching shaft respectively, and the axis of the pitching shaft is vertical to the axis of the output flange;
the locking mechanism is used for fixing the pitching attitude of the tightening hoop.
Furthermore, shaft holes are formed in the two ends of the tightening hoop;
one end of the pitching shaft is fixedly connected with the supporting seat, and the other end of the pitching shaft extends into the shaft hole and is in clearance fit with the inner wall of the shaft hole;
the locking mechanism comprises a locking bushing with an inner conical surface and a locking screw;
the locking bush is sleeved in a gap between the pitching shaft and the tightening hoop;
a threaded hole is formed in the other end of the pitching shaft, and an outer conical surface matched with the inner conical surface of the locking bushing is arranged on the side surface of the pitching shaft;
the locking screw penetrates through the locking bush and is fixedly connected with the pitching shaft through the threaded hole, so that the locking bush is clamped between the pitching shaft and the tightening hoop.
Furthermore, an annular groove is formed in the locking screw;
the axis of the end face through hole of the locking bush deviates from the axis of the threaded hole by a distance which enables the locking bush to be partially clamped in the annular groove of the locking screw.
Furthermore, a polytetrafluoroethylene lining is further sleeved between the pitching shaft and the tightening hoop.
Further, the speed change gear assembly comprises a first gear set, a second gear set and a third gear set;
the first gear set comprises a first driven gear and a second driving gear which are coaxially arranged;
the second gear set comprises a second driven gear and a third driving gear which are coaxially arranged;
the third gear set comprises a third driven gear and a fourth driving gear which are coaxially arranged;
the driving gear is meshed with the first driven gear; the second driving gear is meshed with the second driven gear; the third driving gear is meshed with the third driven gear; the fourth driving gear is meshed with the driven gear.
Further, the housing includes a housing body and a top cover mounted over the housing body;
the lower end of a rotating shaft of the first gear set is connected with the shell body through a miniature ball bearing with a stop flange, and the upper end of the rotating shaft of the first gear set is connected with the top cover through the miniature ball bearing;
The lower end of a rotating shaft of the second gear set is sleeved on an output shaft of the disc type motor through a bearing;
the lower end of a rotating shaft of the third gear set is connected with the shell body through a miniature ball bearing with a stop flange, and the upper end of the rotating shaft of the third gear set is connected with the top cover through the miniature ball bearing;
the lower end of the output flange is connected with the shell body through a crossed roller bearing, and the upper end of the output flange extends out of the top cover.
Further, the housing includes a housing body and a top cover mounted over the housing body;
the top cover is provided with an adjusting hole, an adjusting seat is arranged in the adjusting hole, and a gap between the adjusting seat and the inner wall of the adjusting hole is adjustable;
the lower end of a rotating shaft of the first gear set is connected with the shell body through a miniature ball bearing with a stop flange, and the upper end of the rotating shaft of the first gear set is connected with the adjusting seat through the miniature ball bearing;
the lower end of a rotating shaft of the second gear set is sleeved on an output shaft of the disc type motor through a bearing;
the lower end of a rotating shaft of the third gear set is connected with the shell body through a miniature ball bearing with a stop flange, and the upper end of the rotating shaft of the third gear set is connected with the adjusting seat through the miniature ball bearing;
the lower end of the output flange is connected with the shell body through a crossed roller bearing, and the upper end of the output flange extends out of the top cover.
Furthermore, a polytetrafluoroethylene ring is arranged between the output flange and the top cover.
Furthermore, a polytetrafluoroethylene gasket is arranged between the bottom surface of the supporting seat and the top cover.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a compact radar antenna turntable, which adopts an azimuth adjusting unit and a pitching adjusting unit to realize the arbitrary attitude adjustment of a radar antenna, wherein the azimuth adjusting unit is mainly used for adjusting the azimuth angle of the radar antenna by driving an output flange to rotate through the matching of a disc motor and a gear transmission mechanism; the pitching adjusting unit adjusts the pitching angle of the radar antenna by manually adjusting the state of the locking mechanism and the posture of the tightening hoop, is of a symmetrical structure relative to the direction adjusting unit, can reduce the unbalanced moment of the rotary table, and can be folded by 90 degrees relative to the direction adjusting unit to reduce the height of the rotary table by the tightening hoop, so that the portable size requirement is met; in conclusion, the rotary table is small in overall size, light in weight and convenient to carry;
(2) the locking mechanism enables the locking bush to be clamped between the pitching shaft and the tightening ring through the fastening force of the locking screw, the pitching attitude of the tightening ring is fixed by the friction force between the outer surface of the locking bush and the tightening ring, the quick locking and unlocking of the tightening ring can be realized, and the structure is simple, convenient to use and good in locking effect;
(3) The axis of the end surface through hole of the locking bush deviates from the axis of the threaded hole, so that the locking bush is clamped in the annular groove of the locking screw, the locking screw cannot interfere with the locking bush during locking, and the locking screw drives the locking bush to be pulled out during unlocking, so that the locking bush is fast and convenient;
(4) a polytetrafluoroethylene lining is sleeved between the pitching shaft and the tightening ring, so that the flexibility and the stability of the rotation of the tightening ring after unlocking can be ensured;
(5) the requirement of output rotating speed and torque can be ensured through the transmission form of the speed change gear assembly, the energy consumption can be reduced, and the internal space of the shell can be effectively utilized;
(6) the second gear set is sleeved on the output shaft of the disc type motor in a hollow way through a bearing, so that the torque of the motor is not transmitted, and the space is saved; the lower end of the output flange is fixedly connected with the shell body through a crossed roller bearing, and the crossed roller bearing has high rigidity and high precision and large bearing capacity, and is beneficial to reducing the structural size and the weight;
(7) a gap is reserved between the adjusting seat and the wall of the adjusting hole, and the position of the adjusting seat in the adjusting hole can be finely adjusted, so that the rotating shafts of the meshing gears are ensured to be parallel, the transmission noise is reduced, and the transmission precision is improved;
(8) a polytetrafluoroethylene ring is arranged between the output flange and the top cover, so that the radial swing amplitude of the output flange can be reduced;
(9) A polytetrafluoroethylene gasket is arranged between the bottom surface of the supporting seat and the top cover, so that the supporting seat can rotate fast and stably relative to the top cover.
Drawings
FIG. 1 is a side view of one embodiment of a compact radar antenna turntable of the present invention;
FIG. 2 is a top view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an embodiment of the present invention;
FIG. 4 is a schematic view of a connection structure of a disk motor, a gear transmission mechanism and an output flange in the embodiment of the invention;
FIG. 5 is a top view of a gear assembly in an embodiment of the present invention;
FIG. 6 is a cross-sectional view B-B of FIG. 3;
FIG. 7 is a cross-sectional view C-C of FIG. 3;
FIG. 8 is a partial schematic view of FIG. 7;
in the figure, 01-an azimuth adjusting unit, 02-a pitch adjusting unit, 1-a polytetrafluoroethylene gasket, 2-a polytetrafluoroethylene ring, 3-an output flange, 4-a cross roller bearing, 5-a collector ring, 6-an encoder, 7-a disc motor, 8-a driving gear, 9-a second gear set, 10-a third gear set, 11-a driven gear, 12-a set screw, 13-a first gear set, 14-an adjusting seat, 15-a miniature ball bearing, 16-a miniature ball bearing with a stopping flange, 17-a shell body, 18-a top cover, 19-a clamping ring, 20-a locking bush, 21-a locking screw, 22-a pitch shaft, 23-a polytetrafluoroethylene bush, 24-a supporting seat and 25-a threaded hole, 26-end face through hole.
Detailed Description
To make the objects, advantages and features of the present invention more apparent, a compact radar antenna turntable according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the compact radar antenna turntable provided by the present invention includes an azimuth adjusting unit 01 and a pitch adjusting unit 02.
As shown in fig. 3, the azimuth adjustment unit 01 includes a housing, a disk motor 7, a gear transmission mechanism, an output flange 3, a bus ring 5, and an encoder 6.
Specifically, the housing includes a housing body 17 and a top cover 18 mounted over the housing body 17, and the disk motor 7 and the gear transmission mechanism are located in a cavity between the housing body 17 and the top cover 18.
As shown in fig. 4 and 5, in the gear transmission mechanism, the speed change gear assembly includes a first gear set 13, a second gear set 9, and a third gear set 10. The first gear set 13 includes a first driven gear and a second driving gear which are coaxially disposed, the second gear set 9 includes a second driven gear and a third driving gear which are coaxially disposed, and the third gear set 10 includes a third driven gear and a fourth driving gear which are coaxially disposed. The driving gear 8 is meshed with the first driven gear, the second driving gear is meshed with the second driven gear, the third driving gear is meshed with the third driven gear, and the fourth driving gear is meshed with the driven gear 11, so that the transmission from the driving gear 8 to the driven gear 11 can be realized.
The driving gear 8 is fixed on an output shaft of the disc type motor 7 through hot mounting to transmit motor torque; the lower end of the rotating shaft of the first gear set 13 is fixedly supported on a shell body 17 through a micro ball bearing 16 with a stop flange, and the upper end of the rotating shaft is fixedly supported on a top cover 18 through a micro ball bearing 15; the lower end of a rotating shaft of the second gear set 9 is sleeved on an output shaft of the disc type motor 7 through a bearing in an empty mode, and the torque of the motor is not transmitted; the lower end of the rotating shaft of the third gear set 10 is fixedly supported on the shell body 17 through a miniature ball bearing 16 with a stop flange, and the upper end of the rotating shaft is fixedly supported on a top cover 18 through a miniature ball bearing 15; the driven gear 11 is fixedly sleeved outside the output flange 3 through a set screw 12; the lower end of the output flange 3 is connected with the shell body 17 through the crossed roller bearing 4, the upper end of the output flange extends out of the top cover 18, and a polytetrafluoroethylene ring 2 is arranged between the position, extending out of the top cover 18, of the output flange 3 and the top cover 18 and used for reducing the radial swing amplitude of the output flange 3; the moving plate of the encoder 6 is bonded to the lower surface of the driven gear 11.
Due to the reasons of machining errors, assembly technology and the like, the common design structure is difficult to ensure that the bearing positioning hole in the shell body 17 is coaxial with the bearing positioning hole in the top cover 18 in actual assembly, so that the rotating shafts of the meshed gears are not parallel, the transmission noise is high, and the transmission precision is low. Therefore, a gear adjusting structure is designed, as shown in fig. 6, an adjusting hole is formed in the top cover 18, an adjusting seat 14 is arranged in the adjusting hole, the adjusting seat 14 is fixedly installed in the adjusting hole through screws, the upper ends of the rotating shafts of the first gear set 13 and the third gear set 10 are fixedly supported on the adjusting seat 14 through a miniature ball bearing 16 with a stopping flange, and the gap between the adjusting seat 14 and the inner wall of the adjusting hole is finely adjusted by adjusting the tightness of the screws for fixing the adjusting seat 14, namely, the position of the adjusting seat 14 in the adjusting hole is adjusted to ensure that the rotating shafts of the meshing gears are parallel, so that the transmission noise is reduced, and the transmission precision is improved.
Under the condition that the connecting structure among the disc motor 7, the gear transmission mechanism, the output flange 3, the collecting ring 5 and the encoder 6 is determined, the shape of the shell can be determined according to the distribution of each part and the size requirement of the rotary table. The inside layered design that adopts of shell, the main transmission structure of installing in upper strata, electrical elements such as lower floor's main installation drive plate, connector, cable through keep apart rotary part and electrical elements and set up to separately walk the line with power cable and communication cable, can effectively guarantee the security of system.
As shown in fig. 7, the pitch adjustment unit 02 includes a support base 24, a pitch shaft 22, a hoop 19 for mounting a radar antenna, and a locking mechanism.
The supporting seat 24 is fixedly arranged at the upper end of the output flange 3, and a through hole for the converging ring 5 to pass through is formed in the supporting seat 24; two ends of the tightening ring 19 are respectively hinged with the supporting seat 24 through a pitch shaft 22, and the axis of the pitch shaft 22 is vertical to the axis of the output flange 3; the locking mechanism is used for fixing the pitch attitude of the tightening band 19.
During operation, disk motor 7 provides power, and level four gear engagement transmission drives output flange 3 and rotates, and then drives the tight hoop 19 who installs radar antenna on the supporting seat 24 and rotates, can realize radar antenna's position angle adjustment. The state of the locking mechanism and the tightening posture are manually adjusted, and the pitching angle adjustment of the radar antenna can be realized.
A polytetrafluoroethylene gasket 1 is arranged between the supporting seat 24 and the top cover 18, so that the supporting seat 24 can rotate fast and stably relative to the top cover 18.
The locking mechanism has a plurality of structural forms, and the invention provides a locking mechanism which has simple structure and convenient use, and comprises a locking bush 20 with an inner conical surface and a locking screw 21 as shown in figure 8. Both ends of the tightening ring 19 are provided with shaft holes, one end of the pitching shaft 22 is fixedly connected with the supporting seat 24 through a screw, the other end of the pitching shaft extends into the shaft hole and is in clearance fit with the inner wall of the shaft hole, and the locking bush 20 is sleeved in a clearance between the pitching shaft 22 and the tightening ring 19. The other end of the pitch shaft 22 is internally provided with a threaded hole 25, the side surface of the pitch shaft is provided with an external conical surface matched with the internal conical surface of the locking bush 20, and the locking screw 21 passes through the locking bush 20 and is fixedly connected with the pitch shaft 22 through the threaded hole 25, so that the locking bush 20 is clamped between the pitch shaft 22 and the tightening hoop 19. The requirement of different locking forces can be met by changing the angle and the length of the inner conical surface.
In order to ensure that the locking bush 20 is pulled out to complete unlocking when the locking screw 21 is screwed out, an annular groove is formed in the root of the locking screw 21, the axis of the through hole 26 in the end face of the locking bush 20 deviates from the axis of the threaded hole 25 by the deviation distance, so that the locking bush 20 is partially clamped in the annular groove of the locking screw 21, and the locking screw 21 can drive the locking bush 20 to be pulled out when screwed out.
In order to ensure the flexibility and stability of the rotation of the tightening band 19 after unlocking, a teflon bush 23 is provided between the pitch axis 22 and the tightening band 19.
Claims (9)
1. A compact radar antenna revolving stage which characterized in that:
comprises an azimuth adjusting unit (01) and a pitching adjusting unit (02);
the azimuth adjusting unit (01) comprises a shell, a disc type motor (7), a gear transmission mechanism, an output flange (3), a collector ring (5) and an encoder (6);
the disc type motor (7) and the gear transmission mechanism are positioned in the shell;
the gear transmission mechanism comprises a driving gear (8), a speed change gear assembly and a driven gear (11);
the driving gear (8) is fixedly arranged on an output shaft of the disc type motor (7) and is in transmission connection with the driven gear (11) through a speed change gear assembly; the driven gear (11) is fixedly sleeved on the outer side of the output flange (3);
The lower end of the output flange (3) is positioned in the shell and is rotatably connected with the shell, and the upper end of the output flange extends out of the shell;
the collector ring (5) is arranged in a hollow cavity of the output flange (3), is in clearance fit with the output flange (3), is fixedly connected with the shell at the lower end, and extends out of the shell and the upper end of the output flange (3) at the upper end;
the encoder (6) comprises a movable disc and a static disc which are coaxially arranged from top to bottom in sequence, the movable disc and the static disc are sleeved outside the output flange (3), the movable disc is fixedly connected with the lower surface of the driven gear (11), and the static disc is fixedly connected with the shell;
the pitching adjusting unit (02) comprises a supporting seat (24), a pitching shaft (22), a tightening ring (19) for mounting the radar antenna and a locking mechanism;
the supporting seat (24) is fixedly arranged at the upper end of the output flange (3), and a through hole for the converging ring (5) to pass through is formed in the supporting seat (24);
two ends of the tightening ring (19) are hinged with the supporting seat (24) through a pitching shaft (22) respectively, and the axis of the pitching shaft (22) is vertical to the axis of the output flange (3);
the locking mechanism is used for fixing the pitching attitude of the tightening hoop (19).
2. The compact radar antenna turret of claim 1, wherein:
shaft holes are formed in the two ends of the tightening ring (19);
One end of the pitching shaft (22) is fixedly connected with the supporting seat (24), and the other end of the pitching shaft extends into the shaft hole and is in clearance fit with the inner wall of the shaft hole;
the locking mechanism comprises a locking bush (20) with an inner conical surface and a locking screw (21);
the locking bushing (20) is sleeved in a gap between the pitching shaft (22) and the tightening hoop (19);
a threaded hole (25) is formed in the other end of the pitching shaft (22), and an outer conical surface matched with the inner conical surface of the locking bushing (20) is arranged on the side surface of the pitching shaft;
the locking screw (21) penetrates through the locking bush (20) and is fixedly connected with the pitch shaft (22) through the threaded hole (25), so that the locking bush (20) is clamped between the pitch shaft (22) and the tightening ring (19).
3. The compact radar antenna turret of claim 2, wherein:
an annular groove is formed in the locking screw (21);
the axis of the end face through hole (26) of the locking bush (20) is deviated from the axis of the threaded hole (25) by a distance which enables the locking bush (20) to be partially clamped in the annular groove of the locking screw (21).
4. The compact radar antenna turret according to claim 3, wherein:
a polytetrafluoroethylene lining (23) is further sleeved between the pitching shaft (22) and the tightening ring (19).
5. The compact radar antenna turret according to any one of claims 1 to 4, wherein:
The speed change gear assembly comprises a first gear set (13), a second gear set (9) and a third gear set (10);
the first gear set (13) comprises a first driven gear and a second driving gear which are coaxially arranged;
the second gear set (9) comprises a second driven gear and a third driving gear which are coaxially arranged;
the third gear set (10) comprises a third driven gear and a fourth driving gear which are coaxially arranged;
the driving gear (8) is meshed with the first driven gear; the second driving gear is meshed with the second driven gear; the third driving gear is meshed with the third driven gear; the fourth driving gear is meshed with the driven gear (11).
6. The compact radar antenna turret of claim 5, wherein:
the housing comprises a housing body (17) and a top cover (18) mounted over the housing body (17);
the lower end of a rotating shaft of the first gear set (13) is connected with a shell body (17) through a micro ball bearing (16) with a stop flange, and the upper end of the rotating shaft of the first gear set is connected with a top cover (18) through a micro ball bearing (15);
the lower end of a rotating shaft of the second gear set (9) is sleeved on an output shaft of the disc type motor (7) through a bearing;
the lower end of a rotating shaft of the third gear set (10) is connected with the shell body (17) through a micro ball bearing (16) with a stop flange, and the upper end of the rotating shaft of the third gear set is connected with the top cover (18) through a micro ball bearing (15);
The lower end of the output flange (3) is connected with the shell body (17) through a crossed roller bearing (4), and the upper end of the output flange extends out of the top cover (18).
7. The compact radar antenna turret of claim 5, wherein:
the housing comprises a housing body (17) and a top cover (18) mounted over the housing body (17);
an adjusting hole is formed in the top cover (18), an adjusting seat (14) is installed in the adjusting hole, and a gap between the adjusting seat (14) and the inner wall of the adjusting hole is adjustable;
the lower end of a rotating shaft of the first gear set (13) is connected with a shell body (17) through a micro ball bearing (16) with a stop flange, and the upper end of the rotating shaft of the first gear set is connected with an adjusting seat (14) through a micro ball bearing (15);
the lower end of a rotating shaft of the second gear set (9) is sleeved on an output shaft of the disc type motor (7) through a bearing;
the lower end of a rotating shaft of the third gear set (10) is connected with the shell body (17) through a micro ball bearing (16) with a stop flange, and the upper end of the rotating shaft of the third gear set is connected with the adjusting seat (14) through a micro ball bearing (15);
the lower end of the output flange (3) is connected with the shell body (17) through a crossed roller bearing (4), and the upper end of the output flange extends out of the top cover (18).
8. The compact radar antenna turret of claim 7, wherein:
And a polytetrafluoroethylene ring (2) is arranged between the output flange (3) and the top cover (18).
9. The compact radar antenna turret of claim 7, wherein:
a polytetrafluoroethylene gasket (1) is arranged between the bottom surface of the supporting seat (24) and the top cover (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761824.6A CN111969292B (en) | 2020-07-31 | 2020-07-31 | Compact radar antenna revolving stage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761824.6A CN111969292B (en) | 2020-07-31 | 2020-07-31 | Compact radar antenna revolving stage |
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| CN111969292A CN111969292A (en) | 2020-11-20 |
| CN111969292B true CN111969292B (en) | 2022-07-29 |
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