CN210692763U - Satellite-borne deployable antenna locking mechanism and satellite antenna - Google Patents
Satellite-borne deployable antenna locking mechanism and satellite antenna Download PDFInfo
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- CN210692763U CN210692763U CN201921410486.0U CN201921410486U CN210692763U CN 210692763 U CN210692763 U CN 210692763U CN 201921410486 U CN201921410486 U CN 201921410486U CN 210692763 U CN210692763 U CN 210692763U
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Abstract
The utility model discloses a satellite-borne deployable antenna locking mechanism and a satellite antenna, which comprises a first connecting piece, a second connecting piece and a third connecting piece, wherein the first connecting piece is provided with a first through hole; the first connecting piece is connected with the second connecting piece through a rotating shaft; the bracket is arranged on the end face of the first connecting piece far away from the second connecting piece, and a second special-shaped through hole is formed in the bracket; the first end of the locking rod penetrates through the first through hole, the second end of the locking rod penetrates through the second special-shaped through hole, and a flange is arranged on the locking rod; a first end of the spring is connected to the flange, and a second end of the spring is connected to the bracket; the arc-shaped groove is arranged on the end face, close to the first connecting piece, of the second connecting piece, and a positioning hole is formed in the bottom wall of the arc-shaped groove; the first end of the locking rod is in contact with the arc-shaped groove, the first end of the locking rod slides in the arc-shaped groove, and when the locking rod reaches a preset position, the locking rod falls into the positioning hole to be locked in a clamping mode. A satellite antenna includes a satellite-borne deployable antenna locking mechanism. The locking mechanism is reliable and stable in the locking process.
Description
Technical Field
The utility model belongs to the locking mechanical system field especially relates to a satellite-borne deployable antenna locking mechanical system and satellite antenna.
Background
The satellite-borne antenna is an important component for realizing target tracking, orientation and data transmission. The conventional antenna structure consists of a main reflecting surface, a secondary reflecting surface and a connecting piece for connecting the main reflecting surface and the secondary reflecting surface, and the envelope shape is approximately in a spindle shape. In order to improve the gain of the satellite-borne antenna, the aperture of the antenna is larger and larger, and the integral envelope size of the antenna is increased. In the transmitting stage, the antenna needs to be tightly pressed on the star body, and a large space is occupied.
In the existing satellite-borne antenna, a main reflecting surface and a secondary reflecting surface are connected in a foldable manner through a connecting piece, a locking mechanism is arranged on the connecting piece, and when the main reflecting surface and the secondary reflecting surface are unfolded in place, the locking mechanism is locked and locked.
The locking mechanism in the prior art is very easy to cause unstable locking due to some external vibration after being locked, and further influences the performance of the antenna.
Disclosure of Invention
In order to solve the above problem, the to-be-solved technical problem of the present invention is to provide a satellite-borne deployable antenna locking mechanism, which is reliable and stable in the locking process.
The technical scheme of the utility model is that:
a satellite-borne deployable antenna locking mechanism, comprising:
the first connecting piece is used for connecting the first antenna reflecting surface and is provided with a first through hole;
the first connecting piece and the second connecting piece are connected through a rotating shaft and can rotate around the rotating shaft;
the bracket is arranged on the end face, away from the second connecting piece, of the first connecting piece, and a second special-shaped through hole is formed in the bracket;
the first end of the locking rod penetrates through the first through hole and extends out of the first through hole, the second end of the locking rod penetrates through the second special-shaped through hole, the cross section of the matching part of the locking rod and the second special-shaped through hole is matched with the cross section of the second special-shaped through hole in shape, a flange is arranged on the locking rod, and the flange is located between the first through hole and the second special-shaped through hole;
a spring having a first end connected to the flange and a second end connected to the bracket, the spring being configured to apply a spring force to the locking lever in a direction toward the second link;
the arc-shaped groove is formed in the end face, close to the first connecting piece, of the second connecting piece, and a positioning hole is formed in the bottom wall of the arc-shaped groove;
the first end of the locking rod is in contact with the arc-shaped groove, slides in the arc-shaped groove along with the rotation of the first connecting piece relative to the second connecting piece, and falls into the positioning hole to be locked when reaching a preset position.
According to the utility model discloses an embodiment, including locking feedback device that targets in place, include:
the second end of the locking rod extends out of the second special-shaped through hole, and the first end of the pressing plate is arranged on the second end of the locking rod;
the microswitch is arranged on the bracket and corresponds to the pressing plate;
when the locking mechanism is locked, the locking rod falls into the positioning hole, the pressing plate presses down and triggers the microswitch, and the microswitch feeds back a signal to the controller.
According to the utility model discloses an embodiment, second dysmorphism hole is the polygon through-hole. The polygonal through hole is easy to machine and manufacture.
According to the utility model discloses an embodiment, the polygon through-hole is square through-hole. The square is in a common shape and is simple and practical.
According to an embodiment of the present invention, the first end of the locking lever is a ball head. The ball head can reduce the friction between the locking rod and the arc-shaped groove, so that the sliding is smoother.
According to an embodiment of the invention, the cross-sectional shape of the flange is circular. The round shape is easy for mounting the spring and processing and manufacturing.
According to the utility model discloses an embodiment, the support pass through the bolt with first connecting piece is connected.
According to the utility model discloses an embodiment, the clamp plate pass through the bolt with the locking lever is connected.
According to an embodiment of the present invention, the locking lever falls into the positioning hole portion is tapered.
Based on the same conception, the utility model also provides a satellite antenna, including the satellite-borne deployable antenna locking mechanical system of any one of above-mentioned embodiment.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) the utility model discloses set up special-shaped through-hole on the support, the locking lever also suits with the cross sectional shape of special-shaped through-hole cooperation part for the locking lever can not lead to the rotation because of the vibrations of some outsides, also can not be at slip in-process rotation. The locking rod can shake due to rotation, and the instability of the spring is caused, so that the vibration of the whole locking mechanism is caused, the antenna connection is unstable, and the performance of the antenna is influenced; the locking rod can also cause the vibration of the whole locking mechanism and the locking to be not in place due to autorotation in the sliding process, so that the locking is more stable and reliable due to the fact that the locking rod cannot autorotate in the technical scheme, and the locking mechanism is high in locking rigidity and in-place precision.
(2) The utility model discloses set up support, locking lever, spring, arc wall for can automatic locking when the antenna expandes to target in place.
(3) The utility model discloses set up the locking feedback device that targets in place, can learn by the controller when making the locking target in place to carry out relevant operation, also can lock the operation again for the controller under the condition that the locking is not in place if appearing.
(4) The utility model discloses the locking lever falls into locating hole part and is divided into the toper, has easily to insert locating hole and locking back gapless advantage. If cylindrical, clearance fit is required to ensure that the locking rod is inserted smoothly into the locating hole, which clearance can affect the locking effect.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is an overall schematic view of an unlocked state of a lock mechanism of a satellite-borne deployable antenna according to the present invention;
fig. 2 is a partial schematic view of a second connection member of a locking mechanism of a satellite-borne deployable antenna of the present invention;
fig. 3 is a schematic view of a locking lever of a satellite-borne deployable antenna locking mechanism of the present invention;
fig. 4 is a schematic view of a locking state of a locking mechanism of a satellite-borne deployable antenna according to the present invention;
FIG. 5 is a cross-sectional view of the satellite borne deployable antenna locking mechanism of the present invention in an unlocked state;
fig. 6 is a cross-sectional view of the locking state of the locking mechanism of the satellite-borne deployable antenna of the present invention;
description of reference numerals:
11: a first connecting member; 12: a second connecting member; 13: a rotating shaft; 21: a support; 22: a locking lever; 23: a spring; 24: an arc-shaped slot; 25: positioning holes; 26: a flange; 31: pressing a plate; 32: a micro switch.
Detailed Description
The satellite-borne deployable antenna locking mechanism and the satellite antenna provided by the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It is to be noted that the drawings are in a very simplified form and are not to be construed as precise ratios as are merely intended to facilitate and distinctly illustrate the embodiments of the present invention.
Example 1
Referring to fig. 1 to 6, a locking mechanism for a satellite-borne deployable antenna includes a first connecting member 11 for connecting a first antenna reflection surface, and having a first through hole; the second connecting piece 12 is used for connecting the second antenna reflecting surface, the first connecting piece 11 and the second connecting piece 12 are connected through a rotating shaft 13 and can rotate around the rotating shaft 13, the two connecting pieces are stacked mutually, and the first antenna reflecting surface and the second antenna reflecting surface can be folded mutually through the connection of the rotating shaft 13, so that the space area is saved; the end face, far away from the second connecting piece 12, of the first connecting piece 11 is provided with a support 21, the support 21 is used for bearing other components, the support 21 is provided with a second special-shaped through hole, and the side surface of the special-shaped through hole is coated with MoS2The solid lubricating film is used for reducing friction force, and the special-shaped through hole is a non-circular through hole; a locking rod 22 is arranged on the bracket 21, a first end of the locking rod 22 penetrates through and extends out of the first through hole, a second end of the locking rod 22 penetrates through the second special-shaped through hole, the cross section shape of the matching part of the locking rod 22 and the second special-shaped through hole is matched with that of the second special-shaped through hole, and MoS is correspondingly coated on the matching part2A solid lubricating film for reducing friction, the locking rod 22 can move up and down on the first through hole and the second special-shaped through hole, a flange 26 is arranged on the locking rod 22, the cross-sectional area of the flange 26 is larger than that of the other parts of the locking rod 22, and the flange 26 is positioned between the first through hole and the second special-shaped through hole; the spring 23 is sleeved on the locking rod 22, a first end of the spring 23 is connected to the flange 26, and a second end of the spring 23 is connected to the bracket 21; the spring 23 may also have no connection relationship with the flange 26 and the bracket 21, because the spring 23 is in a compressed state, a first end of the spring 23 may abut against the flange 26, and a second end of the spring 23 abuts against the bracket 21; the spring 23 is used for applying a spring force to the locking rod 22 towards the second connecting piece 12; the flange 26 is not needed, the first end of the spring 23 is fixedly connected to the locking rod 22, the fixed connection can be welding or the like, and the second end of the spring 23 is connected or does not be connected to abut against the bracket 21; an arc-shaped groove 24 is arranged on the end surface of the second connecting piece 12 close to the first connecting piece 11, a positioning hole 25 is arranged on the bottom wall of the arc-shaped groove 24, and the positioning hole 25 is preferably a blind hole and can be positioned on the arc-shaped grooveOne end of the slot 24; MoS is coated on the first end of the locking rod 22 and the surface of the arc-shaped groove 242A solid lubricant film for reducing friction, wherein a first end of the locking rod 22 is in contact with the arc-shaped groove 24, the first end of the locking rod 22 slides in the arc-shaped groove 24 along with the rotation of the first connecting piece 11 relative to the second connecting piece 12, and the locking rod 22 falls into the positioning hole 25 to be locked by clamping when reaching a predetermined position; the spring 23 has two states, the spring 23 pushes the locking rod 22 against the slideway surface in the first pressing state; the spring 23 pushes the locking rod 22 into the positioning hole 25 to be locked in the second pressing state, and at the moment, the spring 23 still has certain residual spring force to play a role in pressing and stabilizing the positioning rod; the part of the locking rod 22 falling into the positioning hole 25 is conical, the conical shape is a conical shape gradually enlarging from the first end of the locking rod 22 to the second end of the locking rod 22, the locking rod 22 is easy to insert into the positioning hole 25, and no clearance exists after locking, if the locking rod 22 is cylindrical, in order to ensure that the locking rod 22 is smoothly inserted into the positioning hole 25, clearance fit needs to be adopted, the clearance can influence the locking effect, and the locking rod 22 can shake in the positioning hole 25.
In the embodiment, by providing the special-shaped through hole, the cross section of the locking rod 22 is matched with the matching part of the special-shaped through hole, so that the locking rod 22 cannot rotate due to external vibration or in the sliding process. Because the self-rotation of the locking rod 22 can shake itself and cause the instability of the spring 23, the vibration of the whole locking mechanism is caused, the antenna connection is unstable, and the performance of the antenna is affected; the locking rod 22 also can cause the vibration of the whole locking mechanism and the locking failure in place due to autorotation in the sliding process, so that the locking is more stable and reliable due to the non-autorotation of the locking rod 22 in the technical scheme, the locking rigidity is high, and the in-place precision is high.
Further, the device comprises a locking-in-position feedback device, which comprises: the second end of the locking rod 22 extends out of the second special-shaped through hole, the pressing plate 31 is perpendicular to the locking rod 22, the locking rod 22 extends out of the bracket 21, the first end of the pressing plate 31 is arranged on the second end of the locking rod 22, and the second end of the pressing plate 31 is arranged in a suspended mode; the microswitch 32 is arranged on the bracket 21, the microswitch 32 corresponds to the pressure plate 31 and is positioned right below the pressure plate 31, and the pressure plate 31 can press the microswitch 32 to trigger signals when the locking rod 22 moves downwards; when locking, the locking rod 22 falls into the positioning hole 25, the pressure plate 31 is pressed down and triggers the microswitch 32 to trigger the microswitch 32 to output level conversion, namely to output a signal in place, and the microswitch 32 feeds back the signal to the controller.
Further, the second special-shaped through hole is a polygonal through hole. The polygonal through hole is easy to machine and manufacture.
Furthermore, the polygonal through hole is a square through hole. The square is in a common shape and is simple and practical.
Further, the first end of the locking rod 22 is a ball. The ball head reduces the contact area between the locking bar 22 and the arc-shaped slot 24, thereby reducing the friction force and making the sliding smoother.
Further, the cross-sectional shape of the flange 26 is circular. The round shape facilitates the mounting of the spring 23 and the manufacturing thereof.
Further, the bracket 21 is connected to the first connecting member 11 by a bolt.
Further, the pressing plate 31 is connected to the locking lever 22 by a bolt.
The working process of this embodiment is further explained as follows:
in an unlocked state, the first antenna reflection surface connected with the first connecting piece 11 and the second antenna reflection surface connected with the second connecting piece 12 are folded together, and the locking rod 22 is pressed against the arc-shaped groove 24 by spring force.
During the locking process, as the first connecting piece 11 and the second connecting piece 12 rotate, the locking rod 22 slides in the arc-shaped groove 24, when the antenna is unfolded in place, the locking rod 22 is sprung into the positioning hole 25 by the spring force, the pressing plate 31 on the locking rod 22 moves along with the spring force, and the spring plate of the microswitch 32 is pressed downwards.
In the locked state, when the spring 23 has a residual spring force, the locking rod 22 is pressed against the positioning hole 25 by the spring 23. At the same time, the microswitch 32 is triggered to trigger the microswitch 32 to output level conversion, namely to output a signal in place, and the microswitch 32 feeds back the signal to the controller.
Example 2
This embodiment provides a satellite antenna based on embodiment 1, and the device employs a satellite-borne deployable antenna locking mechanism as in embodiment 1. The satellite antenna has stable structure and good performance.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (10)
1. A space-borne deployable antenna locking mechanism, comprising:
the first connecting piece is used for connecting the first antenna reflecting surface and is provided with a first through hole;
the first connecting piece and the second connecting piece are connected through a rotating shaft and can rotate around the rotating shaft;
the bracket is arranged on the end face, away from the second connecting piece, of the first connecting piece, and a second special-shaped through hole is formed in the bracket;
the first end of the locking rod penetrates through the first through hole and extends out of the first through hole, the second end of the locking rod penetrates through the second special-shaped through hole, the cross section of the matching part of the locking rod and the second special-shaped through hole is matched with the cross section of the second special-shaped through hole in shape, a flange is arranged on the locking rod, and the flange is located between the first through hole and the second special-shaped through hole;
a spring having a first end connected to the flange and a second end connected to the bracket, the spring being configured to apply a spring force to the locking lever in a direction toward the second link;
the arc-shaped groove is formed in the end face, close to the first connecting piece, of the second connecting piece, and a positioning hole is formed in the bottom wall of the arc-shaped groove;
the first end of the locking rod is in contact with the arc-shaped groove, slides in the arc-shaped groove along with the rotation of the first connecting piece relative to the second connecting piece, and falls into the positioning hole to be locked when reaching a preset position.
2. The on-board deployable antenna locking mechanism of claim 1, comprising a lock-in-place feedback device comprising:
the second end of the locking rod extends out of the second special-shaped through hole, and the first end of the pressing plate is arranged on the second end of the locking rod;
the microswitch is arranged on the bracket and corresponds to the pressing plate;
when the locking mechanism is locked, the locking rod falls into the positioning hole, the pressing plate presses down and triggers the microswitch, and the microswitch feeds back a signal to the controller.
3. The on-board deployable antenna locking mechanism of claim 1, wherein the second shaped through-hole is a polygonal through-hole.
4. The on-board deployable antenna locking mechanism of claim 3, wherein the polygonal through-hole is a square through-hole.
5. The space-borne deployable antenna locking mechanism of claim 1, wherein the first end of the locking bar is a ball head.
6. The on-board deployable antenna locking mechanism of claim 1, wherein the cross-sectional shape of the flange is circular.
7. The on-board deployable antenna locking mechanism of claim 1, wherein the bracket is connected to the first connector by a bolt.
8. The space-borne deployable antenna locking mechanism of claim 2, wherein the pressure plate is connected to the locking rod by a bolt.
9. The on-board deployable antenna locking mechanism of claim 1, wherein the locking bar is tapered to fall into the locating hole portion.
10. A satellite antenna comprising the on-board deployable antenna locking mechanism of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921410486.0U CN210692763U (en) | 2019-08-28 | 2019-08-28 | Satellite-borne deployable antenna locking mechanism and satellite antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921410486.0U CN210692763U (en) | 2019-08-28 | 2019-08-28 | Satellite-borne deployable antenna locking mechanism and satellite antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210692763U true CN210692763U (en) | 2020-06-05 |
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ID=70900274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921410486.0U Active CN210692763U (en) | 2019-08-28 | 2019-08-28 | Satellite-borne deployable antenna locking mechanism and satellite antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210692763U (en) |
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2019
- 2019-08-28 CN CN201921410486.0U patent/CN210692763U/en active Active
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