CN108843912B - Low-reflection transmission mechanism of seeker servo system - Google Patents
Low-reflection transmission mechanism of seeker servo system Download PDFInfo
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- CN108843912B CN108843912B CN201810638044.5A CN201810638044A CN108843912B CN 108843912 B CN108843912 B CN 108843912B CN 201810638044 A CN201810638044 A CN 201810638044A CN 108843912 B CN108843912 B CN 108843912B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 239000000725 suspension Substances 0.000 claims abstract description 26
- 230000001154 acute effect Effects 0.000 claims abstract description 5
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
Abstract
The invention discloses a low-reflection transmission mechanism of a seeker servo system, which has reasonable spatial layout, a bracket is arranged into an approximate Y-shaped structure, the upper end of a front support arm of an antenna is taken as a rotating axis, a main support arm is offset backwards relative to the front support arm, a suspension bracket is arranged into a backward inclined acute angle structure, and the suspension arm is offset backwards to keep the left side and the right side of the antenna away, so that the antenna can not be shielded by the bracket and can directly receive signals; in addition, a transmission form of a gear is adopted, so that the pitching precision is high, and the driving motor cannot shield the antenna due to the rear arrangement of the driving wheel; and the umbrella-shaped structure of the driving arm is arranged, so that the surface area of the driving arm is reduced, the signal reflection is avoided, and the tracking precision of the guide head on the target is improved.
Description
Technical Field
the invention relates to the field of a seeker servo system, in particular to a low-reflection transmission mechanism of the seeker servo system.
background
Servo systems have been developed with the application of electricity, and servo technology has been widely used in recent decades driven by new technological revolution, particularly with the rapid development of microelectronics and computer technology. The servo system is generally an electromechanical system combining a mechanical device and a control system, and various control parameters are input to the servo system through the control system, so that the mechanical device realizes various mechanical motions or mechanical operation actions.
The seeker servo system is a servo system used to keep the wavefront (or optical instrument) stable and achieve the target tracking task. At present, most researches are carried out and the application is wide, a frame type servo transmission mechanism has the advantages of simple structure, easiness in assembly and capability of moving in a direct-drive mode, but the frame type servo transmission mechanism also has the defect that large-angle range searching cannot be achieved in a limited space.
With the continuous development of radar technology, servo systems are increasingly applied to radar related technologies, and generally, an active radar seeker needs to adopt a servo system to realize tracking and scanning motion of an active antenna. However, the space in the cabin section is narrow, the aperture of the active radar antenna is large, the existing frame type servo transmission mechanism cannot meet the index requirement, the antenna can be shielded by the supporting frame, signals are reflected by the frame, the received signals of the antenna are weakened, and the accuracy of target tracking is reduced.
Disclosure of Invention
the invention aims to solve the technical problem of providing a low-reflection transmission mechanism of a seeker servo system, which can reduce the shielding and reflection of a servo system bracket to signals and improve the accuracy of tracking a target by a seeker.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
A low reflection transmission mechanism of a seeker servo system is characterized in that: a support structure comprising a support base and a support arm; the supporting arm comprises two supporting arms which are vertically and oppositely fixed at the two transverse sides of the supporting base and are positioned at the rear side of the supporting base, and the supporting arm is provided with a main supporting arm which is vertically arranged, and a front supporting arm and a rear supporting arm which are arranged above the main supporting arm and respectively extend forwards and backwards in an inclined manner; a pitching driving structure for driving the seeker to perform pitching motion, which comprises a driving wheel, a driven wheel, two driving arms and a suspension frame; the driving wheel is rotatably arranged at the upper end of the inner side of the rear support arm, the outer wall of the driving wheel is provided with transmission teeth, and the driving wheel is coaxially connected with a driving motor for driving the driving wheel to rotate; the driven wheel is arranged opposite to the driving wheel, can be rotatably arranged at the upper end of the inner side of the other rear support arm, and the outer wall of the driven wheel is smooth; the driving arms are of an umbrella-shaped structure and are provided with arc-shaped transmission surfaces and connecting arms, the tail ends of the connecting arms are hinged with the upper end of the inner side of the front supporting arm, the transmission surface of one driving arm is provided with transmission teeth meshed with the driving wheel, and the transmission surface of the other driving arm is smooth and is tangent to the driven wheel; the suspension bracket is positioned between the two driving arms, is in an acute angle structure, and is provided with a suspension arm which is obliquely inclined backwards and is in an arc structure and a bearing plate which is horizontally arranged at the bottom of the suspension arm and positioned at the front side of the suspension arm and is used for installing a seeker fixing seat, and the upper end of the suspension arm is fixed with the rear end of the corresponding driving arm; and the azimuth driving structure is used for driving the seeker to move back and forth or left and right and is positioned between the seeker fixing seat and the bearing plate.
the further technical scheme is as follows: the azimuth driving structure comprises an upper moving plate and a lower moving plate which are vertically overlapped, the upper end faces of the upper moving plate and the lower moving plate are respectively provided with a transverse moving chute and a longitudinal moving chute, and the bottom faces of the seeker fixing seat and the upper moving plate are respectively provided with a moving slide rail matched with the corresponding moving chutes.
The further technical scheme is as follows: the azimuth driving structure also comprises a locking structure used for locking the seeker fixing seat and the upper moving plate.
The further technical scheme is as follows: the azimuth driving structure further comprises two driving screws which are used for driving the seeker fixing seat to move transversely and longitudinally along the moving chute respectively, fixing sleeves which are used for horizontally penetrating the same driving screw are arranged on the same side of the seeker fixing seat and the upper moving plate respectively along the corresponding moving chute direction, fixing sleeves which are used for horizontally penetrating the same driving screw are also arranged on the same side of the upper moving plate and the lower moving plate respectively along the corresponding moving chute direction, and locking nuts are arranged at two ends of each driving screw.
The further technical scheme is as follows: the driving arm and the supporting arm are both hollow structures.
the further technical scheme is as follows: and a reinforcing arm is arranged between the suspension arm and the bearing plate.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
firstly, the transmission mechanism sets the bracket into an approximate Y-shaped structure, the upper end of the front support arm of the antenna is a rotating axis, the main support arm is biased backwards relative to the front support arm, and the left side and the right side of the antenna are separated, so that the antenna is not shielded by the bracket and can directly receive signals;
Secondly, the suspension bracket is arranged into a backward inclined acute angle structure, the suspension arm is biased backwards, the left side and the right side of the antenna are also separated, the signal reflection is avoided, and meanwhile, the arrangement of the bearing plate can ensure that the antenna is positioned in front of the whole body and the rotating axis is positioned on the same plane, so that the accuracy of the pitching angle is ensured;
In addition, a transmission form of a gear is adopted, so that the pitching precision is high, and the driving motor cannot shield the antenna due to the rear arrangement of the driving wheel;
Moreover, the umbrella-shaped structure of the driving arm is arranged, so that the surface area of the driving arm is reduced, and the signal reflection is avoided;
In conclusion, the transmission mechanism is reasonably arranged in space, so that the whole body is biased backwards, two sides of the antenna are left, the antenna can directly receive signals and cannot be reflected by the supporting structure, and the tracking precision of the guide head on the target is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a schematic left side view of the present invention;
FIG. 5 is a schematic view of the construction of the hanger according to the present invention;
Fig. 6 is an enlarged schematic view of a portion a in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the description of the embodiments given herein without making any inventive step, are within the scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 to 5, a low reflection transmission mechanism of a seeker servo system includes a support structure, a pitching driving structure for driving the seeker to pitch, and an azimuth driving structure for driving the seeker to move back and forth or left and right, and the pitching driving structure is used for increasing the pitching direction of the active radar seeker to move, so as to realize the detection of the active antenna low-altitude flight target.
The supporting structure mainly plays a supporting role and provides a mounting platform for the seeker. The support structure comprises a support base 11 and a support arm 12. The support arm 12 includes two vertical opposite fixed on two lateral sides of the support base 11 and is located at the rear side of the support base 11, the support arm 12 has a main support arm 121 vertically arranged, and a front support arm 122 and a rear support arm 123 which are respectively arranged above the main support arm 121 and extend forwards and backwards in an inclined manner. The transmission mechanism is configured by setting the support arm 12 to be approximately "Y" shaped, and the antenna uses the upper end of the front support arm 122 as the rotation axis, and the main support arm 121 is biased backward relative to the front support arm 122, and the left and right sides of the antenna are set back, so that the antenna is not shielded by the support and can directly receive signals.
The pitch driving structure adopts a transmission form of gears and comprises a driving wheel 21, a driven wheel 22, two driving arms 23 and a suspension bracket 24.
A driving wheel 21 rotatably provided at an upper end of an inner side of a rear arm 123, having a driving gear on an outer wall thereof, and coaxially connected with a driving motor 25 for driving the rotation thereof; the driven wheel 22 is disposed opposite to the driving wheel 21, rotatably disposed at the upper end of the inner side of the other rear arm 123, and the outer wall thereof is smooth. The driving motor 25 is arranged not to shield the antenna because the driving wheel 21 is arranged at the rear.
the driving arms 23 are umbrella-shaped and have arc-shaped driving surfaces 231 and connecting arms 232, the tail ends of the connecting arms 232 are hinged with the upper ends of the inner sides of the front supporting arms 122, the driving surface 231 of one driving arm 23 is provided with driving teeth meshed with the driving wheel 21, and the driving surface 231 of the other driving arm 23 is smooth and is arranged in a tangent mode with the driven wheel 22. The transmission form of gear for the precision of every single move is higher. The umbrella-like structure of the driving arm 23 reduces its surface area and also avoids signal reflections.
the suspension bracket 24 is located between the two driving arms 23, has an acute angle structure, and includes a suspension arm 241 inclined backward and having an arc structure, and a bearing plate 242 horizontally located at the bottom of the suspension arm 241 and located at the front side thereof for mounting the guidance head fixing base 100, wherein the upper end of the suspension arm 241 is fixed to the rear end of the corresponding driving arm 23. By setting the suspension bracket 24 to be an acute-angled structure inclined backwards, the suspension arm 241 is biased backwards, and the left and right sides of the antenna are also kept away, so that signal reflection is avoided, and meanwhile, the arrangement of the bearing plate 242 can ensure that the antenna is positioned in the front of the whole body and the rotating axis is positioned on the same plane, so that the accuracy of the pitching angle is ensured.
The azimuth driving structure is located between the seeker fixing base 100 and the bearing plate 242, and is used for adjusting the position of the seeker fixing base 100 on the bearing plate 242.
in conclusion, the transmission mechanism is reasonably arranged in space, so that the whole body is biased backwards, two sides of the antenna are left, the antenna can directly receive signals and cannot be reflected by the supporting structure, and the tracking precision of the guide head on the target is improved.
As shown in fig. 6, the azimuth driving structure includes an upper moving plate 31 and a lower moving plate 32 stacked up and down, the upper end surfaces of the upper moving plate 31 and the lower moving plate 32 are respectively provided with a horizontal moving chute and a longitudinal moving chute, and the bottom surfaces of the seeker fixing seat 100 and the upper moving plate 31 are respectively provided with a moving slide rail matched with the corresponding moving chute. By moving the seeker fixing seat 100 along the moving slide rail on the upper moving plate 31, and relatively fixing the seeker fixing seat 100 and the upper moving plate 31 and moving the guide rail on the lower moving plate 32 together, the left and right and front and back directions of the seeker fixing seat 100 can be adjusted to meet the setting precision of the antenna. In order to avoid the separation of the movable sliding rail and the movable sliding groove, two ends of the movable sliding groove are respectively provided with a limiting part for limiting the movable sliding rail.
The azimuth drive mechanism further comprises a locking mechanism 33 for locking the seeker fixing base 100 with the upper moving plate 31 to ensure relative fixation of the seeker fixing base 100 and the upper moving plate 31. The specific structure may be that a fixing plate is fixed on the seeker fixing seat 100, and the fixing plate extends downward to the upper moving plate 31 side, a hole is formed in the fixing plate, a screw rod is arranged in the hole, and a nut is arranged at the outer end of the screw rod, so that the seeker fixing seat 100 and the upper moving plate 31 can be locked by screwing the nut.
for the specific driving form of the azimuth driving structure, a screw and nut matched driving form can be adopted. Specifically, the azimuth driving structure further comprises two driving screws 34 respectively used for driving the seeker fixing seat 100 to move transversely and longitudinally along the moving chute, fixing sleeves 35 respectively used for horizontally penetrating the same driving screw 34 are arranged on the same side of the seeker fixing seat 100 and the upper moving plate 31 and in the direction of the corresponding moving chute, fixing sleeves 35 respectively used for horizontally penetrating the same driving screw 34 are also arranged on the same side of the upper moving plate 31 and the lower moving plate 32 and in the direction of the corresponding moving chute, locking nuts 36 are arranged at two ends of each driving screw 34, and the two fixing sleeves 35 on the same side can be driven to approach by screwing the locking nut 36 at one end, so that the movement of the moving slide rail in the moving chute is realized.
And further preferably, the driving arm 23 and the supporting arm 12 are hollow structures to reduce the surface area and reduce the emission of signals.
A reinforcing arm 243 is provided between the suspension arm 241 and the carrier plate 242, and a plurality of reinforcing ribs are provided on the transmission mechanism to ensure the movement strength of the overall mechanism.
The above is only a preferred embodiment of the invention, and any simple modifications, variations and equivalents of the invention may be made by anyone in light of the above teachings and fall within the scope of the invention.
Claims (6)
1. A low reflection transmission mechanism of a seeker servo system is characterized in that:
A support structure comprising a support base (11) and a support arm (12);
The supporting arm (12) comprises two supporting arms (12) which are vertically and oppositely fixed on the two transverse sides of the supporting base (11) and are positioned on the rear side of the supporting base (11), and the supporting arm (12) is provided with a main supporting arm (121) which is vertically arranged, and a front supporting arm (122) and a rear supporting arm (123) which are arranged above the main supporting arm (121) and respectively extend forwards and backwards in an inclined manner;
A pitching driving structure for driving the guide head to perform pitching motion, which comprises a driving wheel (21), a driven wheel (22), two driving arms (23) and a suspension bracket (24);
the driving wheel (21) is rotatably arranged at the upper end of the inner side of a rear support arm (123), the outer wall of the driving wheel is provided with transmission teeth, and a driving motor (25) for driving the driving wheel to rotate is coaxially connected with the driving wheel;
The driven wheel (22) is arranged opposite to the driving wheel (21), can be rotatably arranged at the upper end of the inner side of the other rear support arm (123), and has a smooth outer wall;
The driving arms (23) are of umbrella-shaped structures and are provided with arc-shaped driving surfaces (231) and connecting arms (232), the tail ends of the connecting arms (232) are hinged with the upper ends of the inner sides of the front supporting arms (122), the driving surface (231) of one driving arm (23) is provided with driving teeth meshed with the driving wheel (21), and the driving surface (231) of the other driving arm (23) is smooth and is arranged in a tangent mode with the driven wheel (22);
The suspension bracket (24) is positioned between the two driving arms (23), is in an acute angle structure, and is provided with a suspension arm (241) which is obliquely inclined backwards and is in an arc structure, and a bearing plate (242) which is horizontally arranged at the bottom of the suspension arm (241) and positioned at the front side of the suspension arm and is used for installing the guide head fixing seat (100), wherein the upper end of the suspension arm (241) is fixed with the rear end of the corresponding driving arm (23);
and an orientation driving structure for driving the seeker to move back and forth or left and right, which is positioned between the seeker fixing seat (100) and the bearing plate (242).
2. The low reflection actuator of a seeker servo of claim 1, wherein: the azimuth driving structure comprises an upper moving plate (31) and a lower moving plate (32) which are vertically overlapped, the upper end faces of the upper moving plate (31) and the lower moving plate (32) are respectively provided with a transverse moving chute and a longitudinal moving chute, and the bottom face of the seeker fixing seat (100) and the bottom face of the upper moving plate (31) are respectively provided with a moving slide rail matched with the corresponding moving chutes.
3. The low reflection actuator of a seeker servo of claim 2, wherein: the azimuth driving structure further comprises a locking structure (33) used for locking the seeker fixing seat (100) and the upper moving plate (31).
4. the low reflection actuator of a seeker servo of claim 2, wherein: the azimuth driving structure further comprises two driving screw rods (34) which are used for driving the guide head fixing seat (100) to move transversely and longitudinally along the moving chute, fixing sleeves (35) which are used for horizontally penetrating the same driving screw rods (34) are respectively arranged on the same side of the guide head fixing seat (100) and the upper moving plate (31) and along the direction of the corresponding moving chute, the fixing sleeves (35) which are used for horizontally penetrating the same driving screw rods (34) are respectively arranged on the same side of the upper moving plate (31) and the lower moving plate (32) and along the direction of the corresponding moving chute, and locking screw caps (36) are arranged at two ends of each driving screw rod (34).
5. The low reflection actuator of a seeker servo of claim 1, wherein: the driving arm (23) and the supporting arm (12) are both in hollow structures.
6. The low reflection actuator of a seeker servo of claim 1, wherein: and a reinforcing arm (243) is arranged between the suspension arm (241) and the bearing plate (242).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810638044.5A CN108843912B (en) | 2018-06-20 | 2018-06-20 | Low-reflection transmission mechanism of seeker servo system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810638044.5A CN108843912B (en) | 2018-06-20 | 2018-06-20 | Low-reflection transmission mechanism of seeker servo system |
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| Publication Number | Publication Date |
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| CN108843912A CN108843912A (en) | 2018-11-20 |
| CN108843912B true CN108843912B (en) | 2019-12-10 |
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| CN201810638044.5A Active CN108843912B (en) | 2018-06-20 | 2018-06-20 | Low-reflection transmission mechanism of seeker servo system |
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| CN109282119A (en) * | 2018-12-04 | 2019-01-29 | 长安大学 | A kind of shooting platform of multi-pose |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5416756A (en) * | 1991-11-07 | 1995-05-16 | Mitsubishi Denki Kabushiki Kaisha | Lens actuating system with improved frequency response for optical disk drive |
| JP5022677B2 (en) * | 2006-11-21 | 2012-09-12 | 株式会社ブリヂストン | Tire component manufacturing apparatus |
| CN201993123U (en) * | 2010-12-31 | 2011-09-28 | 西安航天精密机电研究所 | Multi-degree-of-freedom infrared target simulation test mechanism |
| CN104360891B (en) * | 2014-10-10 | 2018-01-09 | 中国航天科技集团公司第四研究院第四十一研究所 | Visible images seeker emulates simple target simulation system and its analogy method |
| CN106023716A (en) * | 2016-05-04 | 2016-10-12 | 北京航天易联科技发展有限公司 | Seeker electric turntable and control system thereof |
| CN107062991A (en) * | 2016-12-27 | 2017-08-18 | 南京理工大学 | The infrared heat source rotation table device of target seeker test |
| CN107887700B (en) * | 2017-10-18 | 2020-08-11 | 湖北三江航天险峰电子信息有限公司 | Transmission mechanism of seeker servo system |
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