CN112665468A - Novel strong locking and weak unlocking mechanism - Google Patents
Novel strong locking and weak unlocking mechanism Download PDFInfo
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- CN112665468A CN112665468A CN202011521391.3A CN202011521391A CN112665468A CN 112665468 A CN112665468 A CN 112665468A CN 202011521391 A CN202011521391 A CN 202011521391A CN 112665468 A CN112665468 A CN 112665468A
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- airfoil
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Abstract
The invention provides a novel strong-locking weak-unlocking mechanism which comprises an actuator, a connecting piece, an upper wing surface, a lower wing surface and a fixing pin, wherein the upper wing surface is provided with a plurality of locking holes; the upper wing surface and the lower wing surface are provided with locking grooves, and the two locking grooves are aligned in an initial working state; the connecting piece is arranged in the lock groove in a sliding manner; the upper wing surface and the connecting piece are provided with pin holes corresponding in position; the fixing pin passes through the pin holes of the connecting piece and the upper airfoil surface to lock the positions of the upper airfoil surface, the lower airfoil surface and the connecting piece. The invention has the advantages that the locking device has large locking force, and ensures that the missile wing surface folding and unfolding mechanism is reliably locked under the condition of large external load in the initial state; when the mechanism moves, the mechanism can be unlocked reliably only by small unlocking force.
Description
Technical Field
The invention belongs to the field of weaponry, and relates to a locking mechanism of a missile wingspan mechanism, in particular to a novel strong-locking weak-unlocking mechanism.
Background
According to the increasingly severe use requirements of the existing missile, under the condition of heavy load, before the missile wing surface folding and unfolding mechanism is unfolded, the missile wing surface folding and unfolding mechanism needs to be reliably locked to keep a folding state, and after an actuator works, the mechanism is required to be reliably unlocked to enable the mechanism to be unfolded in place.
According to research, the locking mechanisms of missile wing span mechanisms conventionally used at home and abroad at present adopt a shear pin mode, and calculate to obtain the locking force required by the folding and unfolding mechanism initially according to the self shear strength of a shear pin material, and then the locking mechanism is processed into a cylindrical shear pin which is arranged in a pin hole to keep the mechanism in an initial folding state; the shear pin is cut off and the folding and unfolding mechanism is unlocked by the driving force provided by the mechanism actuator, and the structure has the defects that the locking purpose is achieved by the strength of the shear pin material, the locking force is large, the driving force of the required unlocking force is large, a part of the driving force provided by the actuator is consumed on the unlocking force, and the defect of low utilization efficiency of the driving force exists; if the required locking force is greater than the driving force provided by the actuator, the shear pin structure cannot meet the requirement; in addition, other mechanisms with strong locking and weak unlocking have the defects of complex structure, more related parts, low reliability and the like, and are not suitable for the development trend of the current flying missile. Therefore, it is an object of the present invention to provide a novel lock mechanism having a large locking force, a small unlocking force, and a simple structure.
Disclosure of Invention
The invention mainly aims to provide a novel reliable locking and unlocking mechanism aiming at the problem that the prior art cannot meet the requirements of reliable locking and unlocking of an airfoil folding and unfolding mechanism under the condition of heavy load under the increasingly severe use conditions of the existing missile.
In order to achieve the aim, the technical scheme of the invention is as follows: a novel strong locking and weak unlocking mechanism comprises an actuator, a connecting piece, an upper wing surface, a lower wing surface and a fixed pin; the upper wing surface and the lower wing surface are provided with locking grooves, and the two locking grooves are aligned in an initial working state; the connecting piece is arranged in the lock groove in a sliding manner; the upper wing surface and the connecting piece are provided with pin holes corresponding in position; the fixing pin passes through the pin holes of the connecting piece and the upper airfoil surface to lock the positions of the upper airfoil surface, the lower airfoil surface and the connecting piece.
Furthermore, the length of the connecting piece in the locking groove of the upper airfoil surface and the lower airfoil surface is 5mm, so that the locking strength and the shearing force during unlocking are ensured.
Further, the structural strength of the connecting piece is not less than 30000N, so that the strong locking capacity of the airfoil is ensured.
Furthermore, the connecting piece is of a rectangular structure and made of alloy steel 30CrMnSiA, and the thickness of the connecting piece is 4.8 mm.
Furthermore, the diameter of the fixing pin is 2mm, the structural strength is 800N-1200N, and the actuator pushes the connecting piece to cut off the fixing pin, so that weak unlocking is realized.
The invention has the beneficial effects that: compared with the prior art, the mechanism has the advantages that the locking force is large, and the folding and unfolding mechanism in the initial state is ensured to be reliably locked; the unlocking force is small, and the mechanism can be reliably unlocked by the small unlocking force. Through a large number of tests carried out in the real mechanism, the structure can ensure the reliable locking and unlocking of the wingspan mechanism, and has simple structure and easy engineering realization.
Drawings
FIG. 1 is a structural view in an initial state;
FIG. 2 is a left side sectional view of FIG. 1;
fig. 3 is an isometric view of fig. 1.
In the figure: the device comprises an upper wing surface 1, a connecting piece 2, a lower wing surface 3, a fixing pin 4, an actuator 5 and a locking groove 6.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
The invention relates to a novel strong locking and weak unlocking mechanism which comprises an actuator 5, a connecting piece 2, an upper wing surface 1, a lower wing surface 3 and a fixing pin 4; the upper wing surface 1 and the lower wing surface 3 are provided with locking grooves, and the two locking grooves are aligned in an initial working state; the connecting piece 2 is arranged in the lock groove in a sliding manner; the upper wing surface and the connecting piece are provided with pin holes corresponding in position; the fixing pin passes through the pin holes of the connecting piece and the upper airfoil surface to lock the positions of the upper airfoil surface, the lower airfoil surface and the connecting piece.
The length of the connecting piece in the locking groove of the upper airfoil surface and the lower airfoil surface is 5mm, so that the locking strength and the shearing force during unlocking can be ensured.
The locking force on the airfoil mainly depends on the structural strength of the connecting piece, and the structural strength of the connecting piece is not less than 30000N, so that the strong locking capability on the airfoil is ensured.
The actuator drives the connecting piece to move after working, the fixing pins of the connecting piece and the upper wing surface are cut off, the connecting piece moves for 5mm and then exits from the locking groove aligned with the upper wing surface and the lower wing surface, the folding and unfolding mechanism is in an unlocking state, and the unlocking force is 800N-1200N, so that weak unlocking is realized.
The working principle of the device is as follows, referring to fig. 1 to 3 for explaining the embodiment: in an initial locking state, the connecting piece 2 of the mechanism is arranged in a locking groove 6 aligned with the upper wing surface 1 and the lower wing surface 3 and is clamped between the upper wing surface 1 and the lower wing surface 3, and the relative motion relationship of the upper wing surface 1 and the lower wing surface 3 is restricted; and then the fixing pin 4 is arranged in the lock pin holes of the upper wing surface 1 and the connecting piece 2, so that the connecting piece 2 does not move axially, and the whole mechanism is in a locking state. After the actuator 5 works, the connecting piece 2 is pushed to move, the fixing pin 4 is cut off, after the connecting piece 2 slides for 5mm of travel in the locking grooves 6 of the upper wing surface 1 and the lower wing surface 3, the connecting piece retreats from the locking grooves 6, the fixed constraint relation between the upper wing surface 1 and the lower wing surface 3 is removed, and relative movement can be carried out, so that the folding and unfolding mechanism is unlocked.
Compared with the prior art, the invention has large locking force and ensures the reliable locking of the folding and unfolding mechanism in the initial state; the unlocking force is small, and the mechanism can be reliably unlocked by the small unlocking force. Through a large number of tests carried out in the real mechanism, the structure can ensure the reliable locking and unlocking of the wingspan mechanism, and has simple structure and easy engineering realization. The large locking force is not less than 30000N, and the weak unlocking force is 800N-1200N.
Claims (5)
1. A novel strong locking weak unlocking mechanism is characterized in that: the mechanism consists of an actuator, a connecting piece, an upper wing surface, a lower wing surface and a fixed pin; the upper wing surface and the lower wing surface are provided with locking grooves, and the two locking grooves are aligned in an initial working state; the connecting piece is arranged in the lock groove in a sliding manner; the upper wing surface and the connecting piece are provided with pin holes corresponding in position; the fixing pin passes through the pin holes of the connecting piece and the upper airfoil surface to lock the positions of the upper airfoil surface, the lower airfoil surface and the connecting piece.
2. The novel strong locking weak unlocking mechanism according to claim 1, wherein: the length of the connecting piece in the locking groove of the upper airfoil surface and the lower airfoil surface is 5mm, so that the locking strength and the shearing force during unlocking are ensured.
3. The novel strong locking weak unlocking mechanism according to claim 1, wherein: the structural strength of the connecting piece is not less than 30000N, so that the strong locking capacity of the airfoil is ensured.
4. A novel strong locking weak unlocking mechanism according to claim 3, wherein: the connecting piece is of a rectangular structure and made of alloy steel 30CrMnSiA, and the thickness of the connecting piece is 4.8 mm.
5. The novel strong locking weak unlocking mechanism according to claim 1, wherein: the diameter of the fixed pin is 2mm, the structural strength is 800N-1200N, and the actuator pushes the connecting piece to cut off the fixed pin, so that weak unlocking is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521391.3A CN112665468B (en) | 2020-12-21 | 2020-12-21 | Novel strong locking and weak unlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521391.3A CN112665468B (en) | 2020-12-21 | 2020-12-21 | Novel strong locking and weak unlocking mechanism |
Publications (2)
| Publication Number | Publication Date |
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| CN112665468A true CN112665468A (en) | 2021-04-16 |
| CN112665468B CN112665468B (en) | 2023-08-15 |
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| CN202011521391.3A Active CN112665468B (en) | 2020-12-21 | 2020-12-21 | Novel strong locking and weak unlocking mechanism |
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Citations (9)
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|---|---|---|---|---|
| CN101875404A (en) * | 2009-12-17 | 2010-11-03 | 北京理工大学 | Sealed small low-impact release screw bolt |
| CN110972544B (en) * | 2010-12-23 | 2013-11-13 | 中国兵器工业第二0三研究所 | Device for unfolding, locking and connecting missile wing |
| CN204078065U (en) * | 2014-09-17 | 2015-01-07 | 江西洪都航空工业集团有限责任公司 | A kind of unmanned airplane empennage foldable structure |
| CN204775993U (en) * | 2015-04-29 | 2015-11-18 | 北京威标至远科技发展有限公司 | Wing device is folded to aircraft |
| CN107128478A (en) * | 2017-05-23 | 2017-09-05 | 安徽中科中涣防务装备技术有限公司 | A kind of fast unfolding device of folded wing |
| US20170334542A1 (en) * | 2016-05-23 | 2017-11-23 | The Boeing Company | Low-Profile Wing Hinge Mechanism |
| CN110873090A (en) * | 2019-10-29 | 2020-03-10 | 北京星际荣耀空间科技有限公司 | Strong-connection weak unlocking device |
| CN111121560A (en) * | 2019-12-25 | 2020-05-08 | 兰州空间技术物理研究所 | Rocket control surface folding and unfolding rotary driving device |
| WO2020174448A1 (en) * | 2019-02-28 | 2020-09-03 | Tubitak | Wing deployment and locking system |
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2020
- 2020-12-21 CN CN202011521391.3A patent/CN112665468B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875404A (en) * | 2009-12-17 | 2010-11-03 | 北京理工大学 | Sealed small low-impact release screw bolt |
| CN110972544B (en) * | 2010-12-23 | 2013-11-13 | 中国兵器工业第二0三研究所 | Device for unfolding, locking and connecting missile wing |
| CN204078065U (en) * | 2014-09-17 | 2015-01-07 | 江西洪都航空工业集团有限责任公司 | A kind of unmanned airplane empennage foldable structure |
| CN204775993U (en) * | 2015-04-29 | 2015-11-18 | 北京威标至远科技发展有限公司 | Wing device is folded to aircraft |
| US20170334542A1 (en) * | 2016-05-23 | 2017-11-23 | The Boeing Company | Low-Profile Wing Hinge Mechanism |
| CN107128478A (en) * | 2017-05-23 | 2017-09-05 | 安徽中科中涣防务装备技术有限公司 | A kind of fast unfolding device of folded wing |
| WO2020174448A1 (en) * | 2019-02-28 | 2020-09-03 | Tubitak | Wing deployment and locking system |
| CN110873090A (en) * | 2019-10-29 | 2020-03-10 | 北京星际荣耀空间科技有限公司 | Strong-connection weak unlocking device |
| CN111121560A (en) * | 2019-12-25 | 2020-05-08 | 兰州空间技术物理研究所 | Rocket control surface folding and unfolding rotary driving device |
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| 邓红林等: "基于SimMechanics的折叠翼展开机构动力学仿真与试验分析", 《中国科技论文》 * |
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| CN112665468B (en) | 2023-08-15 |
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