CN212517479U - A folding antenna device for AUV - Google Patents
A folding antenna device for AUV Download PDFInfo
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- CN212517479U CN212517479U CN202021499389.6U CN202021499389U CN212517479U CN 212517479 U CN212517479 U CN 212517479U CN 202021499389 U CN202021499389 U CN 202021499389U CN 212517479 U CN212517479 U CN 212517479U
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Abstract
The utility model discloses a folding antenna device for AUV. The utility model discloses a solve the AUV when navigation under water, traditional AUV's antenna still keeps the upright state, thereby becomes AUV navigation resistance and reduces the problem of navigation distance. The scheme realizes the function of folding the antenna by using the slide block connecting rod mechanism, has novel integral structure design, small movable volume of the device, no redundant attached body during underwater navigation and can completely reduce the resistance of the attached body; the AUV after the improved design reduces the sailing resistance in water to the maximum extent and can be used as an innovative mechanism design of a long-range AUV.
Description
Technical Field
The utility model relates to an ocean and hydrology investigation instrument equipment field, concretely relates to a folding antenna device for AUV.
Background
Autonomous Underwater Vehicles (AUV) are the main tools people explore to develop the ocean. The length of the flight of the AUV is crucial to the application of the AUV. To achieve this, the sailing resistance should be minimized and the battery capacity should be maximized. Unlike cabled underwater vehicles, AUVs utilize wireless communication technology to interact with onshore technicians requiring a non-metallic antenna. When the AUV sails underwater, radio attenuation is fast and basically cannot be transmitted, but the traditional AUV still keeps an upright state, and temporary 'redundant' attachments tend to become AUV sailing resistance, so that sailing distance is influenced.
In order to solve the problem, Wang Guangzhan et al design 'an antenna device capable of being lifted and released', although the frontal area of the appendage can be effectively reduced so as to reduce the resistance, the volume of the antenna is small, and the appendage resistance still exists; the Shenhong et al uses a double-rocker mechanism to realize the folding antenna, the scheme is effective and feasible, but the defect of large motion space of the double-rocker mechanism exists, and the double-rocker mechanism occupies larger space in the incomparable AUV space.
Aiming at the defects existing in the design of the existing AUV folding antenna, a folding antenna device for the AUV is urgently needed to be provided so as to increase the navigation distance of the AUV and simultaneously improve the navigation performance of the AUV.
SUMMERY OF THE UTILITY MODEL
The utility model provides a folding antenna device for AUV increases the operation ability, reduces navigation resistance, increases AUV's security, increases the navigation distance and promotes navigation performance.
The utility model discloses an adopt following technical scheme to realize: a folding antenna device for an AUV (autonomous underwater vehicle) comprises an antenna, a supporting rod, a deep groove ball bearing A, a deep groove ball bearing B, a deep groove ball bearing C, an antenna cover plate, a threading bolt, a threading nut, a sliding block, a sliding rail, a sealing cover plate, a screw rod, a coupler, a stepping motor, a cabin body, a bearing gland, a buoyancy block, an O-shaped sealing ring A, an O-shaped sealing ring B, an O-shaped sealing ring C and an antenna rotating shaft;
the method is characterized in that: the antenna module comprises a cabin body, a platform, a plurality of sliding rail mounting holes, a rotating shaft, a sliding rail mounting hole and a plurality of sliding rails, wherein the cabin body is a cylinder-like object with a certain wall thickness, the front end of the top of the cabin body is provided with the platform, the platform is provided with two bosses and the plurality of sliding rail mounting holes, the middle of each boss is provided with a rotating shaft central hole, the rotating shaft central hole is the rotating center of the whole antenna module and is used;
the antenna is a hollow closed shell and is used for loading a communication sensor of an underwater vehicle, the bottom of the antenna is provided with 1 sealing ring mounting groove and 4 cover plate mounting threaded holes, the middle part of the front end of the antenna is respectively provided with 2 rotating shaft bearing mounting holes and 1 supporting rod bearing mounting hole, the sealing ring mounting groove is used for mounting an O-shaped sealing ring, the rotating shaft bearing mounting hole is used for mounting a deep groove ball bearing B and is coaxially matched with a rotating shaft of the antenna, the supporting rod bearing mounting hole is used for mounting a deep groove ball bearing A and is coaxially matched with a boss at the front end of a supporting rod, the cover plate mounting threaded hole is used for mounting an antenna cover plate, the antenna cover plate is an aluminum plate, the shape of the antenna cover plate is the same as that of the bottom of the antenna, the middle part of the antenna cover plate is provided with a through hole, the inner side of the antenna cover plate is connected with, the purpose is to lead the power line and the signal line of the communication module in the antenna into the cabin body under the condition of ensuring integral water tightness;
the antenna comprises a supporting rod, a sliding block, a screw rod, a bearing, a bearing mounting hole, a boss, a sliding block and a threaded hole, wherein the supporting rod is an aluminum strip with bosses at two ends;
the utility model discloses a bearing seal structure of bearing, including shaft coupling, screw rod, sealing cover, bearing installation section, bearing gland, sealing cover, bearing installation section and screw rod tail end, shaft coupling front end and tail end are connected with screw rod tail end and step motor respectively, and the purpose is with step motor's rotation synchronous transmission to the screw rod on, the screw rod is one by the screw tooth, the sealing washer installation section, the step shaft that bearing installation section and screw rod tail end are constituteed, the sealing washer installation section cooperates with O type sealing washer to install in sealed apron, form the sealing layer, bearing installation section and deep groove ball bearing C cooperation to install in sealed apron, sealed apron is a class "protruding" type solid of revolution, and the sealed apron main aspects have one with bearing gland complex counter bore, have in the counter bore with O type sealing washer C complex seal groove, bearing gland is a circular solid of.
The buoyancy block (14) is approximately complementary to the cabin body (12) in shape and is arranged on the cabin body to increase the overall buoyancy.
Furthermore, the curved surface of the top and the front end adopts a circular surface with the same radius as the cabin body and is made of POM material.
Furthermore, the stepping motor rotates, the screw rod (9) synchronously rotates under the action of the coupler (10), the sliding block (6) matched with the screw rod horizontally moves back and forth under the limitation of the sliding rail (7), the supporting rod (2) arranged on the sliding block (6) moves back and forth at the same time, and the antenna (1) rotates around the rotating shaft central hole (12e) under the limitation of the rotating shaft central hole (12 e).
Furthermore, the working stroke of the antenna (1) is to rotate 90 degrees around the central hole (12e) of the rotating shaft, and the extreme positions of the antenna are that the tail part of the antenna (1) faces backwards and is parallel to the whole autonomous underwater robot.
Further, the buoyancy block (14) is made of a deep sea buoyancy material with corrosion resistance, high pressure resistance and low water absorption rate.
Furthermore, fillets are arranged at multiple positions inside and outside the cabin body (12), stress concentration is prevented, and underwater pressure resistance is enhanced.
Further, the communication sensor comprises a GPS positioning module, a radio station module, a WIFI module and a 4G module.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
the scheme provides a brand new design idea for the AUV antenna appendage, the antenna appendage is folded and hidden when working underwater, the navigation resistance is reduced, and the physical space and the motion space of the mechanism are minimized;
in addition, the buoyancy material is used on the surface of the AUV, the material is light, the processing is simple, the replacement is convenient, the overall buoyancy is increased to reduce the weight caused by the overall device, the appearance is more round, and the resistance of the underwater vehicle is minimized; the AUV after the improvement design improves the navigation performance while increasing the operation capacity, and ensures that the function is realized and the underwater navigation resistance is maximally reduced.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the enclosure of FIG. 1;
fig. 3 is an exploded view of the structure of the antenna module of fig. 1;
FIG. 4 is a schematic structural view of the folding and telescoping mechanism of FIG. 1;
FIG. 5 is a schematic structural view of the lead screw of FIG. 1;
FIG. 6 is an exploded view of the drive module of FIG. 1;
fig. 7 is an overall schematic view of the installation on the AUV.
Detailed Description
In order to clearly understand the above objects, features and advantages of the present invention, the present invention will be further described with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the specific embodiments disclosed below.
The underwater robot system generally comprises an AUV and an onshore control unit, wherein the AUV can navigate on the water surface and underwater, the robot is in real-time communication with the onshore control unit when navigating on the water surface, the AUV can lift an antenna above the water surface, and sends real-time position information, information collected by other sensors and the like to a shore base while navigating; when the underwater vehicle sails underwater, the antenna is folded and retracted, and the AUV works normally.
Specifically, this embodiment provides a foldable antenna apparatus for an AUV, as shown in fig. 1, the foldable antenna apparatus for an AUV includes a cabin (12), an antenna module, a foldable telescopic mechanism, and a driving module. The antenna comprises an antenna (1) and a supporting rod (2), a deep groove ball bearing A (3a), a deep groove ball bearing B (3B), a deep groove ball bearing C (3C), an antenna cover plate (4), a threading bolt (5a), a threading nut (5B), a sliding block (6), a sliding rail (7), a sealing cover plate (8), a lead screw (9), a coupler (10), a stepping motor (11), a cabin body (12), a bearing gland (13), a buoyancy block (14), an O-shaped sealing ring A (15a), an O-shaped sealing ring B (15B), an O-shaped sealing ring C (15C) and an antenna rotating shaft (16);
the cabin body (12) is shown in fig. 2, the cabin body (12) is a cylindrical object with a certain wall thickness, the front end of the top of the cabin body is provided with a platform (12d), the platform (12d) is provided with two bosses (12a) and a plurality of slide rail mounting holes (12b), a rotating shaft central hole (12e) is formed in the middle of each boss (12a), the rotating shaft central hole (12e) is a rotating center of the whole antenna module and is used for mounting an antenna rotating shaft (16), the slide rail mounting holes (12b) are threaded holes and are used for mounting slide rails (7), and round corners are arranged at multiple positions inside and outside the cabin body (12), so that stress concentration is prevented, and underwater pressure resistance is enhanced;
the antenna module is shown in fig. 3, the antenna (1) is a hollow closed shell, the front end curved surface of the antenna (1) adopts a round surface with the same radius as the cabin body (12), and is made of a POM material and used for loading a communication sensor of an underwater vehicle, the communication sensor comprises a GPS (global positioning system) positioning module, a radio station module, a WIFI (wireless fidelity) module and a 4G (global positioning system) module, 1 sealing ring mounting groove (1a) and 4 cover plate mounting threaded holes (1B) are formed in the bottom of the antenna (1), 2 rotating shaft bearing mounting holes (1c) and 1 supporting rod bearing mounting hole (1d) are respectively formed in the front end and the middle part of the antenna (1), the sealing ring mounting groove (1a) is used for mounting an O-shaped sealing ring, the rotating shaft bearing mounting hole (1c) is used for mounting a deep groove B (3B) and is coaxially matched with an antenna rotating shaft (16), and the supporting rod bearing mounting hole (1d) is used for mounting a deep groove ball bearing A ( The bosses are coaxially matched, the cover plate mounting threaded hole (1b) is used for mounting an antenna cover plate (4), the antenna cover plate (4) is an aluminum plate, the appearance of the aluminum plate is the same as the bottom shape of the antenna (1), a through hole is formed in the middle of the aluminum plate, an O-shaped sealing ring and a threading bolt (5a) are connected to the inner side of the antenna cover plate (4), the O-shaped sealing ring and a threading nut (5b) are connected to the outer side of the antenna cover plate (4), and the threading bolt (5a) and the threading nut (5b) are arranged on the inner side and the outer side of the antenna cover plate (4) so as to lead power lines and signal lines of a communication module in the antenna (1) into the;
the design concept of a folding telescopic mechanism using a ball screw-slider sliding rail mechanism is innovatively provided, as shown in fig. 4, a support rod (2) is an aluminum strip with bosses at two ends, the front end of the support rod (2) is coaxially matched with a support rod bearing mounting hole (1d) in the middle of an antenna (1), a boss at the tail end of the support rod (2) is coaxially matched with a mounting hole in a slider (6), the bottom end of the slider (6) is matched with a sliding rail (7), the slider (6) can move back and forth on the sliding rail (7), and the top end of the slider (6) is provided with a threaded hole matched with a screw rod (9);
the driving mechanism is shown in fig. 6, the front end and the tail end of the coupler (10) are respectively connected with the tail end (9d) of the screw rod and the stepping motor (11), so that the rotation of the stepping motor (11) is synchronously transmitted to the screw rod (9), and the stepping motor and the coupler are mature products in the market; as shown in fig. 5, the screw rod (9) is a stepped shaft composed of a screw thread (9a), a seal ring installation section (9C), a bearing installation section (9b) and a screw rod tail end (9d), the seal ring installation section (9C) is matched with an O-shaped seal ring (15b) and installed in a seal cover plate (8) to form a seal layer, the bearing installation section (9b) is matched with a deep groove ball bearing C (3C) and installed in the seal cover plate (8), the seal cover plate (8) is a similar 'convex' type revolving body, a counter bore matched with a bearing gland (13) is arranged at the large end of the seal cover plate (8), a seal groove matched with the O-shaped seal ring C (15C) is arranged in the counter bore, the bearing gland (13) is a circular revolving body, and a boss for supporting the outer ring of the deep groove ball bearing C (3C) is arranged at the inner end.
The AUV is integrally shown in figure 7, the buoyancy block (14) is made of a deep sea buoyancy material with corrosion resistance, high pressure resistance and low water absorption, the shape of the deep sea buoyancy block is generally complementary to that of the cabin body (12), and the deep sea buoyancy block is arranged on the cabin body to increase the overall buoyancy; meanwhile, the whole AUV is regular in appearance after being installed, and the navigation resistance is minimized.
With reference to fig. 1, when the stepping motor (11) rotates forward, the lead screw (9) rotates forward synchronously under the action of the coupler (10), the sliding block (6) matched with the lead screw moves forward horizontally under the limitation of the sliding rail (7), meanwhile, the supporting rod (2) arranged on the sliding block (6) moves forward and is limited by the rotating shaft center hole (12e), the antenna (1) rotates around the rotating shaft center hole (12e), and the antenna (1) extends out; conversely, the stepping motor (11) rotates reversely, the screw rod (9) synchronously rotates reversely under the action of the coupler (10), the sliding block (6) matched with the screw rod moves backwards horizontally under the limitation of the sliding rail (7), meanwhile, the supporting rod (2) installed on the sliding block (6) moves backwards and is limited by the rotating shaft center hole (12e), the antenna (1) rotates around the rotating shaft center hole (12e), and the antenna (1) is folded and retracted. The working stroke is that the underwater robot rotates 90 degrees around the central hole (12e) of the rotating shaft, and the extreme positions of the underwater robot are that the tail part of the antenna (1) faces backwards and is parallel to the whole autonomous underwater robot.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (6)
1. A folding antenna device for an AUV (autonomous Underwater vehicle) comprises an antenna (1), a supporting rod (2), a deep groove ball bearing A (3a), a deep groove ball bearing B (3B), a deep groove ball bearing C (3C), an antenna cover plate (4), a threading bolt (5a), a threading nut (5B), a sliding block (6), a sliding rail (7), a sealing cover plate (8), a screw rod (9), a coupler (10), a stepping motor (11), a cabin body (12), a bearing gland (13), a buoyancy block (14), an O-shaped sealing ring A (15a), an O-shaped sealing ring B (15B), an O-shaped sealing ring C (15C) and an antenna rotating shaft (16);
the method is characterized in that: the antenna module is characterized in that the cabin body (12) is a cylinder-like object with a certain wall thickness, the front end of the top of the cabin body is provided with a platform (12d), the platform (12d) is provided with two bosses (12a) and a plurality of slide rail mounting holes (12b), the middle of each boss (12a) is provided with a rotating shaft central hole (12e), the rotating shaft central hole (12e) is a rotating center of the whole antenna module and is used for mounting an antenna rotating shaft (16), and the slide rail mounting holes (12b) are threaded holes and are used for mounting slide rails (7);
the antenna (1) is a hollow closed shell and is used for loading a communication sensor of an underwater vehicle, the bottom of the antenna (1) is provided with 1 sealing ring mounting groove (1a) and 4 cover plate mounting threaded holes (1B), the middle part of the front end of the antenna (1) is respectively provided with 2 rotating shaft bearing mounting holes (1c) and 1 supporting rod bearing mounting hole (1d), the sealing ring mounting groove (1a) is used for mounting an O-shaped sealing ring, the rotating shaft bearing mounting hole (1c) is used for mounting a deep groove ball bearing B (3B) and is coaxially matched with an antenna rotating shaft (16), the supporting rod bearing mounting hole (1d) is used for mounting a deep groove ball bearing A (3a) and is coaxially matched with a boss at the front end of the supporting rod (2), the cover plate mounting threaded hole (1B) is used for mounting an antenna cover plate (4), and the shape of the antenna cover plate (4) is the same as the shape of the bottom of the antenna, the antenna cover plate is characterized by comprising an aluminum plate with a through hole in the middle, wherein the inner side of the antenna cover plate (4) is connected with an O-shaped sealing ring and a threading bolt (5a), the outer side of the antenna cover plate (4) is connected with an O-shaped sealing ring and a threading nut (5b), and the inner side and the outer side of the antenna cover plate (4) are provided with the threading bolt (5a) and the threading nut (5b) so as to lead a power line and a signal line of a communication module in the antenna (1) into the cabin body (12) under the condition of ensuring integral watertight;
the antenna is characterized in that the supporting rod (2) is an aluminum strip with bosses at two ends, the front end of the supporting rod (2) is coaxially matched with a supporting rod bearing mounting hole (1d) in the middle of the antenna (1), the boss at the tail end of the supporting rod (2) is coaxially matched with a mounting hole in the sliding block (6), the bottom end of the sliding block (6) is matched with the sliding rail (7), the sliding block (6) can move back and forth on the sliding rail (7), and the top end of the sliding block (6) is provided with a threaded hole matched with the screw rod (9);
the front end and the tail end of the coupler (10) are respectively connected with a screw rod tail end (9d) and a stepping motor (11), the purpose is to transmit the rotation of the stepping motor (11) to a screw rod (9) synchronously, the screw rod (9) is a stepped shaft consisting of a screw thread (9a), a sealing ring installation section (9C), a bearing installation section (9B) and the screw rod tail end (9d), the sealing ring installation section (9C) is matched with an O-shaped sealing ring B (15B) and is installed in a sealing cover plate (8) to form a sealing layer, the bearing installation section (9B) is matched with a deep groove ball bearing C (3C) and is installed in the sealing cover plate (8), the sealing cover plate (8) is a convex-shaped revolving body, the large end of the sealing cover plate (8) is provided with a counter bore matched with a bearing gland (13), and a sealing groove matched with the O-shaped sealing ring C (15C) is arranged in the counter bore, the bearing gland (13) is a circular revolving body, and the inner end of the bearing gland is provided with a boss which props against the outer ring of the deep groove ball bearing C (3C);
the buoyancy block (14) is approximately complementary to the cabin body (12) in shape and is arranged on the cabin body to increase the overall buoyancy.
2. A folded antenna assembly for an AUV according to claim 1, wherein: the front end curved surface of the antenna (1) adopts a circular surface with the same radius as the cabin body (12) and is made of POM materials.
3. A folded antenna assembly for an AUV according to claim 1, wherein: the antenna is characterized in that the stepping motor (11) rotates, the screw rod (9) synchronously rotates under the action of the coupler (10), the sliding block (6) matched with the screw rod horizontally moves back and forth under the limitation of the sliding rail (7), the supporting rod (2) arranged on the sliding block (6) moves back and forth at the same time, and the antenna (1) rotates around the rotating shaft central hole (12e) under the limitation of the rotating shaft central hole (12 e).
4. A folded antenna assembly for an AUV according to claim 1, wherein: the working stroke of the antenna (1) is to rotate 90 degrees around the central hole (12e) of the rotating shaft, and the extreme positions of the antenna are that the tail part of the antenna (1) faces backwards and is integrally parallel to the autonomous underwater robot.
5. A folded antenna assembly for an AUV according to claim 1, wherein: the buoyancy block (14) is made of a deep sea buoyancy material with corrosion resistance, high pressure resistance and low water absorption.
6. A folded antenna assembly for an AUV according to claim 1, wherein: fillets are arranged at multiple positions inside and outside the cabin body (12), stress concentration is prevented, and underwater pressure resistance is enhanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021499389.6U CN212517479U (en) | 2020-07-27 | 2020-07-27 | A folding antenna device for AUV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021499389.6U CN212517479U (en) | 2020-07-27 | 2020-07-27 | A folding antenna device for AUV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212517479U true CN212517479U (en) | 2021-02-09 |
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ID=74443289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021499389.6U Expired - Fee Related CN212517479U (en) | 2020-07-27 | 2020-07-27 | A folding antenna device for AUV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212517479U (en) |
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2020
- 2020-07-27 CN CN202021499389.6U patent/CN212517479U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 Termination date: 20210727 |
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| CF01 | Termination of patent right due to non-payment of annual fee |