CN203910973U - Pose adjusting mechanism of large-scale antenna main reflection plane - Google Patents
Pose adjusting mechanism of large-scale antenna main reflection plane Download PDFInfo
- Publication number
- CN203910973U CN203910973U CN201420332950.XU CN201420332950U CN203910973U CN 203910973 U CN203910973 U CN 203910973U CN 201420332950 U CN201420332950 U CN 201420332950U CN 203910973 U CN203910973 U CN 203910973U
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- sleeve
- ball
- box body
- combination
- adjusting mechanism
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Abstract
The utility model relates to a pose adjusting mechanism of a large-scale antenna main reflection plane. The pose adjusting mechanism comprises a suspension ring, box body combination, a ball screw and sleeve combination used for installation of an antenna main reflection plane. The suspension ring is assembled at one end of the ball screw. The ball screw goes through the leading screw nut in the box body combination and is located in the sleeve combination. The end part of the other end of the ball screw is equipped with a sliding sleeve. One end of the sleeve combination is a fixed end. The other end of the sleeve combination is fixedly installed on the box body combination. A guide groove is processed in the center of one side of the sleeve combination along the length direction. The sliding sleeve is located in the sleeve combination and can slide along the length direction of the sleeve combination. A guide button is arranged in a position, corresponding to the guide groove of the sleeve combination, of the sliding sleeve. A rotation driving mechanism of the ball screw is arranged in the box body combination. The pose adjusting mechanism avoids auxiliary reversion of the ball screw by utilization of the braking characteristics of a motor, and can achieve pose adjusting and precision control of the antenna main reflection plane.
Description
Technical field
The utility model relates to a kind of pose adjusting mechanism of large-scale antenna primary reflection surface, is particularly useful for having the technical field of primary reflection surface single-degree-of-freedom translation adjustment aspect in the large-scale radio telescope antenna of spherical reflector initiatively.
Background technology
Fast development along with present electronic technology, radio communication, computer technology.Radio astronomy technical method obtains significant progress.As the large-scale radio telescope of the main prospecting tools of radio astronomy, rely on the antenna of large receiving area, high directivity, understand the physical characteristic of relevant celestial body etc.Large-scale antenna is owing to being subject to the impact of gravity deformation and alignment error, and the position of primary reflection surface and attitude installation accuracy exist certain error, thereby has affected the receptivity of antenna.
Traditional antenna main reflector pose adjusting mechanism is conventional two kinds of manual adjustment mechanism and electronic adjusting mechanisms, manually adjusts and mostly is adjustment screw rod, and electronic adjusting mechanism mostly is and on the basis of adjusting screw rod, increases small-sized drive motors and realize.Due to the primary reflection surface piecemeal limited amount of transmission antenna, and distortion is less, needs the adjustment amount of adjusting mechanism also little, and therefore, the adjusting mechanism of transmission can meet instructions for use.
Large-scale antenna for radio astronomy because primary reflection surface diameter is large, from great, adjustment amount large and need most principal reflection panels can realize the requirements such as adjustment simultaneously, therefore the primary reflection surface pose adjusting mechanism of large-scale antenna for radio astronomy need to possess high rigidity, compact conformation, precision high, can realize the performances such as synchronous adjustment, adjusting range be relatively large, now traditional primary reflection surface pose adjusting mechanism can not meet instructions for use.
Utility model content
The purpose of this utility model is that the primary reflection surface pose of the Immobile large-scale antenna of primary reflection surface is adjusted and the defect of error compensation aspect in order to overcome, provide a kind of when antenna operating state the adjusting mechanism of primary reflection surface pose, to compensate the variation of the antenna performance causing because of factors such as gravity deformation and alignment errors and to point to deviation, make it have the reliability of high pointing accuracy, environmental suitability and long-term work, improve the signal receiving performance of large-scale antenna equipment.
Technical solution adopted in the utility model is: a kind of pose adjusting mechanism of large-scale antenna primary reflection surface, comprises suspension ring 1, box body combinations 3, ball-screw 7 and sleeve combination 8 for the primary reflection surface that fixes up an aerial wire; Suspension ring 1 are fitted in one end of ball-screw 7, are positioned at sleeve combination 8 after the feed screw nut 5 that ball-screw 7 passes in box body combinations 3, and the other end end of ball-screw 7 is fitted with sliding sleeve 24; One end of sleeve combination 8 is stiff end, and the other end of sleeve combination 8 is packed in box body combinations 3; Center in a side of sleeve combination 8 is processed with gathering sill along its length; Sliding sleeve 24 is positioned at sleeve combination 8 and can on sleeve combines 8 length direction, slides, and is combining on the sliding sleeve 24 of 8 gathering sill opposite position and is being provided with feather key 9 with sleeve; In box body combinations 3, be provided with the rotary drive mechanism of ball-screw 7.
Wherein, described rotary drive mechanism comprises motor 26, decelerator 11, driving gear 13, driven gear 4, taper roll bearing 14 and flat key 21; Feed screw nut 5 two ends that are sleeved on ball-screw 7 are realized equipped and fixing by taper roll bearing 14 and box body combinations 3; Driven gear 4 is sleeved on the excircle of feed screw nut 5, and driven gear 4 is fixed and is coordinated by flat key 21 with feed screw nut 5; Driving gear 13 is fitted in the output shaft end of decelerator 11, and driving gear 13 meshes with driven gear 4, and decelerator 11 is equipped with box body combinations 3.
Wherein, guide vane end stop 25 is installed on the excircle of sliding sleeve 24, on the cylinder inboard wall of sleeve combination 8 be provided with the limit switch 16 matching with guide vane end stop 25, described limit switch 16 is two and the two ends of the cylinder inboard wall of installing sleeve combination 8 respectively; Middle at the cylinder inboard wall of sleeve combination 8 is provided with the zero position switch 15 matching with guide vane end stop 25.
Wherein, the outside, one end of ball-screw 7 equipped suspension ring 1 is provided with protective jacket 2.
The beneficial effects of the utility model: the pose adjusting mechanism of this large-scale antenna primary reflection surface adopt ball screw gear pair transmission mechanism, the rigidity of structure is large, bearing capacity is strong, fast response time, there is very high transmission accuracy and reliability, by avoid the reverse of ball screw assembly, by the braking characteristic of drive motors, in order to guarantee the stable of primary reflection surface adjustment work, can realize pose adjustment and the precision of antenna main reflector controls, the antenna performance that compensation causes because of factors such as gravity deformation and alignment errors and the variation of sensing, and can adapt to the requirement of multiband feed work, round-the-clockly guarantee that antenna works in optimum state.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model primary reflection surface pose adjusting mechanism;
Fig. 2 is the vertical view of Fig. 1;
The structural representation of Fig. 3 the utility model box body combinations;
Fig. 4 is the structural representation of the utility model sleeve combination;
Fig. 5 is the vertical view of Fig. 4;
In figure: 1. suspension ring, 2. protective jacket, 3. box body combinations, 4. driven gear, 5. feed screw nut, 6. slide block protective cover, 7. ball-screw, 8. sleeve combination, 9. feather key, 10. drive protective cover, 11. decelerators, 12. control protective cover, 13. driving gears, 14. taper roll bearings, 15. zero position switchs, 16. limit switches, 17. walk spool, 18. bearing (ball) covers, 19. flanges, 20. drivers, 21. flat keys, 22. switch brackets, 23. locking nuts, 24. sliding sleeves, 25. guide vane end stops, 26. drive motors, 27. casings, 28. ring flanges, 29. ring flanges, 30. mounting flanges, 31. adpting flanges, 32. square sleeves, 33. bases.
Embodiment
The disclosed embodiment of the utility model as follows, with reference to accompanying drawing 1, to Fig. 5, the pose adjusting mechanism of the large-scale antenna primary reflection surface in the present embodiment is a kind ofly according to specific mounting means, to realize the fixed support of main antenna face the active accommodation mechanism that realizes single-degree-of-freedom translation by stretching motion.
The pose adjusting mechanism of described a kind of large-scale antenna primary reflection surface is by the suspension ring 1 for the primary reflection surface that fixes up an aerial wire, protective jacket 2, box body combinations 3, driven gear 4, feed screw nut 5, slide block protective cover 6, ball-screw 7, sleeve combination 8, feather key 9, drive protective cover 10, decelerator 11, control protective cover 12, driving gear 13, taper roll bearing 14, zero position switch 15, limit switch 16, walk spool 17, bearing (ball) cover 18, flange 19, driver 20, flat key 21, switch bracket 22, locking nut 23, sliding sleeve 24, guide vane end stop 25 and drive motors 26 form.Wherein ball-screw 7 one end are connected with antenna main reflector by suspension ring 1, and the other end combines 8 by sleeve and is connected mutually with ground.Ball-screw 7 forms transmission with feed screw nut 5, realizes the single-degree-of-freedom stretching motion of active accommodation mechanism.Driven gear 4 and driving gear 13 form driving-chain, realize the motion transmission between drive motors 26 and feed screw nut 5.Feed screw nut 5 is connected with box body combinations 3; Sliding sleeve 24 is installed on ball-screw 7.Sliding sleeve 24 centers are processed with screwed hole, for being connected with ball-screw 7; One side of sliding sleeve 24 is provided with feather key 9, leads to realize high accuracy with the gathering sill acting in conjunction that sleeve combines on 8, guarantees reliable, smooth and easy, nothing sluggishness that rotation and rectilinear motion transform.The opposite that feather key 9 is installed on sliding sleeve 24 is provided with guide vane end stop 25, and guide vane end stop 25 is realized the control to ball-screw 7 strokes with the interaction of limit switch 16, and the kinematic error of ball-screw 7 in single backhaul is eliminated in the interaction of guide vane end stop 25 and zero position switch 15.
Wherein: sleeve combines 8 one end and is connected by standard component and ground, and the other end is realized bolt by flange 19 with box body combinations 3 and is connected; In sleeve combination 8, have gathering sill one side slide block protective cover 6 is installed, realize the dustproof and waterproof protection of ball-screw 7; The opposite that has gathering sill one side in sleeve combination 8 is provided with three switch brackets 25 successively, on switch bracket 25 in the middle of being positioned at, zero position switch 16 is installed, be positioned on the switch bracket 25 at two ends limit switch 17 is installed, switch mounting interface on switch bracket 25 adopts slotted hole design, conveniently realizes the position adjustment of zero position switch 16 and limit switch 17; The opposite that has gathering sill one side in sleeve combination 8 is provided with slide block protective cover 6, realizes the defencive function of zero position switch 15 and limit switch 16.
Wherein: box body combinations 3 one end are connected with protective jacket 2 by bearing (ball) cover 18, the other end combines 8 with bolts by flange 19 and sleeve; Taper roll bearing 14 is installed respectively at ring flange 28 and mounting flange 30 places, inner side, taper roll bearing 14 inner sides of mounted in pairs are provided with feed screw nut 5, and taper roll bearing 14 is realized axial location and installed fixing by the shaft shoulder of bearing (ball) cover 18, flange 19 and feed screw nut 5; Driven gear 4 is arranged on feed screw nut 5, by flat key 21, realizes circumferential seamless connectivity, to guarantee enough kinematic accuracies, by locking nut 23 and the shaft shoulder of feed screw nut 5, is realized axial location and is installed fixing; The position of departing from ball-screw 7 axis in box body combinations 3 on ring flange 29 is processed with coaxial circular hole, decelerator 11 is installed in inner side, the output shaft end of decelerator 11 is provided with driving gear 13, driving gear 13 and driven gear 4 form driving-chain, realize the motion transmission between drive motors 26 and feed screw nut 5; The equipped drive motors 26 of input of decelerator 11, the outside of decelerator 11 and drive motors 26 is provided with driving protective cover; Opposite one side that box body combinations 3 is installed decelerator 11 1 sides is provided with driver 20 and drives protective cover 12, walks spool 17 and realizes protective cover 12 and drive the cabling between cover 10.
Wherein, the outside, one end of ball-screw 7 equipped suspension ring 1 is provided with protective jacket 2, realizes the dustproof and waterproof protection of ball-screw 7.
Operation principle of the present utility model is to adjust as requested the pose of antenna main reflector, by driver 20, receive signal, send instruction, drive the drive motors 26 of active accommodation mechanism to rotate, after rotating, drive motors 26 drive decelerator 11 to rotate, after rotating, decelerator 11 drive driving gear 13 to rotate, driving gear 13 drives driven gear 4 to rotate, driven gear 4 drives feed screw nut 5 to rotate by flat key 21, feed screw nut 5 drives the motion of ball-screw 7, coordinating of the gathering sill of feather key 9 and sleeve combination 8 one sides, make rotatablely moving of feed screw nut 5 be converted to the rectilinear motion of ball-screw 7, by the relative position of limit switch 16, limited the mobile displacement of ball-screw 7, adjust the pose of antenna main reflector, until after meeting desired pose, instruction stops, the stop motion of active accommodation mechanism, now the pose of antenna main reflector meets the demands.
Claims (4)
1. a pose adjusting mechanism for large-scale antenna primary reflection surface, is characterized in that: comprise suspension ring (1), box body combinations (3), ball-screw (7) and sleeve combination (8) for the primary reflection surface that fixes up an aerial wire; Suspension ring (1) are fitted in one end of ball-screw (7), ball-screw (7) is positioned at sleeve combination (8) after passing the feed screw nut (5) in box body combinations (3), and the other end end of ball-screw (7) is fitted with sliding sleeve (24); One end of sleeve combination (8) is stiff end, and the other end of sleeve combination (8) is packed in box body combinations (3); The center of combining a side of (8) at sleeve is processed with gathering sill along its length; Sliding sleeve (24) is positioned at sleeve combination (8) and can combines along sleeve on the length direction of (8) and slide, and is combining on the sliding sleeve (24) of gathering sill opposite position of (8) and is being provided with feather key (9) with sleeve; In box body combinations (3), be provided with the rotary drive mechanism of ball-screw (7).
2. the pose adjusting mechanism of a kind of large-scale antenna primary reflection surface according to claim 1, is characterized in that: described rotary drive mechanism comprises motor (26), decelerator (11), driving gear (13), driven gear (4), taper roll bearing (14) and flat key (21); Feed screw nut (5) two ends that are sleeved on ball-screw (7) are realized equipped and fixing by taper roll bearing (14) and box body combinations (3); Driven gear (4) is sleeved on the excircle of feed screw nut (5), and driven gear (4) is fixed and is coordinated by flat key (21) with feed screw nut (5); Driving gear (13) is fitted in the output shaft end of decelerator (11), and driving gear (13) meshes with driven gear (4), and decelerator (11) is equipped with box body combinations (3).
3. the pose adjusting mechanism of a kind of large-scale antenna primary reflection surface according to claim 1, it is characterized in that: guide vane end stop (25) is installed on the excircle of sliding sleeve (24), on the cylinder inboard wall of sleeve combination (8) be provided with the limit switch (16) matching with guide vane end stop (25), described limit switch (16) is two and the two ends of the cylinder inboard wall of installing sleeve combination (8) respectively; The middle of combining the cylinder inboard wall of (8) at sleeve is provided with the zero position switch (15) matching with guide vane end stop (25).
4. the pose adjusting mechanism of a kind of large-scale antenna primary reflection surface according to claim 1, is characterized in that: the outside, one end of the equipped suspension ring (1) of ball-screw (7) is provided with protective jacket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420332950.XU CN203910973U (en) | 2014-06-20 | 2014-06-20 | Pose adjusting mechanism of large-scale antenna main reflection plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420332950.XU CN203910973U (en) | 2014-06-20 | 2014-06-20 | Pose adjusting mechanism of large-scale antenna main reflection plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910973U true CN203910973U (en) | 2014-10-29 |
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ID=51785220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420332950.XU Expired - Fee Related CN203910973U (en) | 2014-06-20 | 2014-06-20 | Pose adjusting mechanism of large-scale antenna main reflection plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910973U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767644A (en) * | 2017-02-22 | 2017-05-31 | 长春工业大学 | Rotationally symmetrical surface forming device |
| CN106763148A (en) * | 2017-03-28 | 2017-05-31 | 京信通信系统（中国）有限公司 | A kind of anti-avulsion sliding bearing and antenna |
| CN113479345A (en) * | 2021-06-28 | 2021-10-08 | 南京航空航天大学 | Penetrator for detecting extraterrestrial celestial body with atmosphere and solid surface |
-
2014
- 2014-06-20 CN CN201420332950.XU patent/CN203910973U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767644A (en) * | 2017-02-22 | 2017-05-31 | 长春工业大学 | Rotationally symmetrical surface forming device |
| CN106763148A (en) * | 2017-03-28 | 2017-05-31 | 京信通信系统（中国）有限公司 | A kind of anti-avulsion sliding bearing and antenna |
| CN113479345A (en) * | 2021-06-28 | 2021-10-08 | 南京航空航天大学 | Penetrator for detecting extraterrestrial celestial body with atmosphere and solid surface |
| CN113479345B (en) * | 2021-06-28 | 2022-07-12 | 南京航空航天大学 | Penetrator for detecting extraterrestrial celestial body with atmosphere and solid surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20210620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |