CN212473970U - Stopper for preventing deployable mechanism from being adhered and deployed - Google Patents
Stopper for preventing deployable mechanism from being adhered and deployed Download PDFInfo
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- CN212473970U CN212473970U CN202020578899.6U CN202020578899U CN212473970U CN 212473970 U CN212473970 U CN 212473970U CN 202020578899 U CN202020578899 U CN 202020578899U CN 212473970 U CN212473970 U CN 212473970U
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- spring seat
- mounting bracket
- blocking
- tongue
- blocking tongue
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Abstract
A stopper for preventing an expandable mechanism from being adhered and expanded comprises a stopping tongue, a spring seat, a constraint block and a mounting bracket; the spring seat is arranged on one side of the mounting bracket, and a central boss of the spring seat is inserted into a spring seat mounting hole on the mounting bracket; one end of the blocking tongue is provided with a central hole, and the other end of the blocking tongue is provided with a sharp corner; one end of the blocking tongue with a central hole is inserted into the spring seat mounting hole from the other side of the mounting bracket, and the central hole at the end part of the blocking tongue is matched with the central boss of the spring seat; one end of the blocking tongue with a sharp corner is inserted into a blocking tongue mounting hole of the other mounting bracket; the restraining block is mounted in a central hole of a central boss of the spring seat and restrains the spring between the spring seat and the blocking tongue in a compressed state. The utility model discloses but solve the deployable mechanism adhesion of space one-dimensional extension mechanism and expand and fold back redeployment problem, but improve deployable mechanism's exhibition receipts reliability.
Description
Technical Field
The utility model relates to a stopper of deployable mechanism.
Background
A large solar cell array or a large antenna of a spacecraft needs to be unfolded and supported by a one-dimensional stretching mechanism, and the one-dimensional stretching mechanism is usually unfolded/folded by a multi-segment repeated truss structure in a segment-by-segment unfolding/folding manner. When the spacecraft flies in orbit, due to factors such as the vibration of the orbit or the orbital transfer, the expansion mechanism can vibrate uncontrollably in the process of expanding and retracting the orbit, so that the adjacent expansion mechanisms are adhered and expanded or are folded and then expanded again in the collection box.
When the one-dimensional extending mechanism is applied in the rail, the extendable mechanism can be extended or retracted, but the problems of adhesion extension and re-extension after folding cannot be avoided, so that a stopper capable of preventing the extendable mechanism from adhesion extension is needed, and the extendable mechanism can be orderly and controllably extended and folded in the extending process.
Disclosure of Invention
The utility model solves the technical problem that: but the problem of the deployable mechanism adhesion expansion and folding back redeployment of solving one-dimensional extension mechanism, the utility model provides a stopper that prevention deployable mechanism adhesion was expanded can realize that deployable mechanism is controllable in order to expand and fold.
The utility model adopts the technical proposal that: a stopper for preventing an expandable mechanism from being adhered and expanded comprises a stopping tongue, a spring seat, a constraint block and a mounting bracket; the spring seat is arranged on one side of the mounting bracket, and a central boss of the spring seat is inserted into a spring seat mounting hole on the mounting bracket; one end of the blocking tongue is provided with a central hole, and the other end of the blocking tongue is provided with a sharp corner; one end of the blocking tongue with a central hole is inserted into the spring seat mounting hole from the other side of the mounting bracket, and the central hole at the end part of the blocking tongue is matched with the central boss of the spring seat; one end of the blocking tongue with a sharp corner is inserted into a blocking tongue mounting hole of the other mounting bracket; the restraining block is mounted in a central hole of a central boss of the spring seat and restrains the spring between the spring seat and the blocking tongue in a compressed state.
The end of the blocking tongue with the sharp corner extends out of the motion guide surface of the mounting bracket, and when the deployable mechanism slides along the motion guide surface, the protruding sharp corner of the blocking tongue plays a role in blocking the deployable mechanism.
The angles J1 and J2 of the two slopes of the pointed end of the blocking tongue are determined according to the different requirements of the blocking force of the deployable mechanism.
The height H of the part, extending out of the motion guide surface of the mounting bracket, of the blocking tongue is determined according to the motion clearance between the deployable mechanism and the mounting bracket and the support rigidity deformation of the mounting bracket.
The axial position of the restraint block in the spring seat can be adjusted, and the pre-tightening force of the spring can be adjusted.
Compared with the prior art, the utility model the advantage lie in:
(1) the utility model discloses but the deployable mechanism that can make one-dimensional extension mechanism realizes that orderly controllable expandes/folding, but avoids appearing expandes in-process deployable mechanism adhesion and expandes and draw in the problem that the in-process deployable mechanism was after expanded in the folding back, but improves deployable mechanism's exhibition receipts reliability.
(2) The utility model discloses the structure is constituteed simply, and design benefit through the adjustment spring pretightning force, blocks tongue portion inclined plane angle and boss height, can realize the controllable expansion/folding of the deployable mechanism of unnecessary size, weight.
Drawings
Fig. 1 is a schematic structural view of a stopper of the present invention for preventing an expandable mechanism from being adhesively expanded;
fig. 2 is a schematic structural view of the blocking tongue of the present invention;
fig. 3 is a schematic structural diagram of the spring seat of the present invention.
The attached drawings are as follows: the device comprises a blocking tongue 1, a spring 2, a spring seat 3, a restraint block 4, a connecting screw 5 and a mounting bracket 6.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, a stopper for preventing an expandable mechanism from adhering and expanding comprises a stopping tongue 1, a spring 2, a spring seat 3, a constraint block 4, a connecting screw 5 and a mounting bracket 6.
The spring seat 3 is of a T-shaped structure, the spring seat 3 is installed on one side of the installation support 6, and a central boss of the spring seat 3 is inserted into a spring seat installation hole in the installation support 6; one end of the blocking tongue 1 is provided with a central hole, and the other end is provided with a sharp corner; one end of the blocking tongue 1 provided with a central hole is inserted into the spring seat mounting hole from the other side of the mounting bracket 6, and the central hole at the end part of the blocking tongue 1 is matched with the central boss of the spring seat 3; one end of the blocking tongue 1 with a sharp corner is inserted into a blocking tongue mounting hole of the other mounting bracket 6; the restraint block 4 is arranged in a central hole of a central boss of the spring seat 3, and restrains the spring 2 between the spring seat 3 and the stop tongue 1 in a compressed state; spring retainer 3 is secured to mounting bracket 6 by attachment screws 5.
One end of the blocking tongue 1 provided with a sharp corner extends out of the motion guide surface of the mounting bracket 6, and when the deployable mechanism slides along the motion guide surface, the sharp corner protruding out of the blocking tongue 1 plays a role in blocking the deployable mechanism.
The angles J1 and J2 of the two bevels of the pointed end of the blocking tongue 1 are determined according to the different requirements for the blocking force of the deployable mechanism.
The restraint block 4 can be fixed on the spring seat 3 in a threaded connection or bonding mode, the axial position of the restraint block 4 in the spring seat 3 is adjusted, and the pretightening force of the spring 2 can be adjusted to change the motion resistance of the deployable mechanism.
Taking the corresponding angle J1 when unfolded as an example, the pretightening force of the spring 2 is F1The deployable mechanism is subject to a deployment direction resistance of F2The unfolding resistance F can be obtained through stress analysis2＝F1·tanJ1。
In order to ensure the blocking function of the blocking tongue 1, the height H of the boss of the blocking tongue 1 can be determined according to the movement clearance between the deployable mechanism and the mounting bracket 6 and the support rigidity deformation of the mounting bracket 6.
The utility model discloses mainly be applied to one-dimensional extension mechanism, but make the deployable mechanism realize in order controllable expansion/folding, but avoid appearing the problem that the deployable mechanism adhesion expanded and draw in the after-expansion of in-process deployable mechanism folding in-process, but improve the reliability is received in exhibition of deployable mechanism.
It will be understood by those skilled in the art that while the present invention has been described in terms of the preferred embodiment, it is not intended to limit the invention to the form disclosed in the specification. Any variations and modifications, equivalent substitutions and improvements, etc., which may occur to those skilled in the art, are intended to be included within the scope of the present invention without departing from the spirit and scope of the invention.
The non-detailed description of the present invention is well within the skill of those in the art.
Claims (5)
1. A barrier to prevent adhesive deployment of a deployable mechanism, comprising: comprises a blocking tongue (1), a spring (2), a spring seat (3), a restraint block (4) and a mounting bracket (6); the spring seat (3) is arranged on one side of the mounting bracket (6), and a central boss of the spring seat (3) is inserted into a spring seat mounting hole on the mounting bracket (6); one end of the blocking tongue (1) is provided with a central hole, and the other end is provided with a sharp corner; one end of the blocking tongue (1) provided with a central hole is inserted into the spring seat mounting hole from the other side of the mounting bracket (6), and the central hole at the end part of the blocking tongue (1) is matched with the central boss of the spring seat (3); one end of the blocking tongue (1) with a sharp corner is inserted into a blocking tongue mounting hole of the other mounting bracket (6); the restraint block (4) is arranged in a center hole of a center boss of the spring seat (3) and restrains the spring (2) between the spring seat (3) and the stop tongue (1) in a compressed state.
2. A barrier to prevent adhesive deployment of a deployable mechanism according to claim 1, wherein: one end of the blocking tongue (1) provided with a sharp corner extends out of the motion guide surface of the mounting bracket (6), and when the deployable mechanism slides along the motion guide surface, the sharp corner protruding out of the blocking tongue (1) plays a role in blocking the deployable mechanism.
3. A barrier to prevent adhesive deployment of a deployable mechanism according to claim 1 or claim 2, wherein: the angles J1 and J2 of the two bevels at the tip end of the blocking tongue (1) are determined according to the different requirements of the blocking force of the deployable mechanism.
4. A barrier to prevent adhesive deployment of a deployable mechanism according to claim 3, wherein: the height H of the part, extending out of the motion guide surface of the mounting bracket (6), of the blocking tongue (1) is determined according to the motion clearance between the deployable mechanism and the mounting bracket (6) and the supporting rigidity deformation of the mounting bracket (6).
5. A barrier to prevent adhesive deployment of a deployable mechanism according to claim 4, wherein: the axial position of the restraint block (4) in the spring seat (3) can be adjusted, and the pre-tightening force of the spring (2) can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020578899.6U CN212473970U (en) | 2020-04-17 | 2020-04-17 | Stopper for preventing deployable mechanism from being adhered and deployed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020578899.6U CN212473970U (en) | 2020-04-17 | 2020-04-17 | Stopper for preventing deployable mechanism from being adhered and deployed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212473970U true CN212473970U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020578899.6U Active CN212473970U (en) | 2020-04-17 | 2020-04-17 | Stopper for preventing deployable mechanism from being adhered and deployed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735238A (en) * | 2022-03-25 | 2022-07-12 | 哈尔滨工业大学 | Satellite assembly composed of solar sailboard and antenna and satellite |
-
2020
- 2020-04-17 CN CN202020578899.6U patent/CN212473970U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735238A (en) * | 2022-03-25 | 2022-07-12 | 哈尔滨工业大学 | Satellite assembly composed of solar sailboard and antenna and satellite |
| CN114735238B (en) * | 2022-03-25 | 2023-03-21 | 哈尔滨工业大学 | Satellite assembly composed of solar sailboard and antenna and satellite |
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cui Qifeng Inventor after: Luo Haijun Inventor after: Peng Zhilong Inventor after: Cui Yuxin Inventor after: Liu Kairong Inventor before: Cui Qifeng Inventor before: Luo Haijun Inventor before: Peng Zhilong |