CN114458684A - Hinge mechanism - Google Patents
Hinge mechanism Download PDFInfo
- Publication number
- CN114458684A CN114458684A CN202210132481.6A CN202210132481A CN114458684A CN 114458684 A CN114458684 A CN 114458684A CN 202210132481 A CN202210132481 A CN 202210132481A CN 114458684 A CN114458684 A CN 114458684A
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- piece
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- structural member
- locking
- hinge mechanism
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/10—Arrangements for locking
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention provides a hinge mechanism, comprising a first structural member; and a second structural member rotatably connected to the first structural member; an elastic part used for providing a rotating acting force is arranged between the first structural part and the second structural part; the hinge mechanism further comprises a locking assembly configured on the first structural member; the locking assembly comprises a locking piece which can rotate relative to the first structural member and a pushing piece which is used for pushing the locking piece to rotate; a positioning cavity is formed on the second structural part; the locking piece is configured to be in contact with the second structural piece when the second structural piece rotates relative to the first structural piece under the action of the rotating force, and the locking piece is abutted and fixed in the positioning cavity through the pushing of the pushing piece. The hinge mechanism can adjust the angle of the unfolded solar wing, meet the requirement of the flatness of the unfolded whole wing, effectively reduce the unfolding impact force and have higher rigidity after unfolding.
Description
Technical Field
The invention relates to the technical field of spaceflight. And more particularly, to a hinge mechanism.
Background
With the continuous development of commercial aerospace, the solar wing applicable to small and medium-sized satellites is in multiplied demand, and the solar wing hinge mechanism is taken as one of important parts for driving the solar wing to unfold, and the requirements on the structural form, the driving mode, the unfolding angle precision, the unfolded rigidity, the unfolding impact force and the like of the mechanism are gradually improved.
Disclosure of Invention
In order to solve the problems, the invention provides the hinge mechanism which can adjust the post-unfolding angle of the sun wing, meet the requirement of the whole-wing unfolding planeness, effectively reduce unfolding impact force and have higher post-unfolding rigidity.
In order to achieve the purpose, the invention adopts the following technical scheme:
the present invention provides a hinge mechanism, including:
a first structural member; and
a second structural member rotatably connected to the first structural member;
an elastic part used for providing a rotating acting force is arranged between the first structural part and the second structural part;
the hinge mechanism further comprises a locking component arranged on the first structural member;
the locking assembly comprises a locking piece which can rotate relative to the first structural member and a pushing piece which is used for pushing the locking piece to rotate;
a positioning cavity is formed on the second structural part;
the locking piece is configured to be in contact with the second structural piece when the second structural piece rotates relative to the first structural piece under the action of the rotating force, and the locking piece is abutted and fixed in the positioning cavity through the pushing of the pushing piece.
Furthermore, it is preferable that the first structural member and the second structural member are connected by a rotating shaft; the first structural member is connected and fixed with the rotating shaft through a joint bearing, the second structural member is combined and fixed with the rotating shaft, and the second structural member and the rotating shaft can rotate relative to the first structural member simultaneously.
In addition, preferably, the elastic element is a spiral spring, one end of the spiral spring is fixedly connected to the rotating shaft, and the other end of the spiral spring is fixedly connected to the first structural member.
In addition, preferably, the second structural part comprises an arc surface; the cambered surface is configured to be in contact with the locking piece and enable the locking piece to slide on the cambered surface when the second structural piece rotates;
the surface of the positioning cavity contacting with the locking piece is a slope.
In addition, preferably, the first structural member comprises an adjusting screw for adjusting the unfolding flatness of the first structural member and the second structural member; the second structural member includes an abutment portion for abutting against the adjustment screw.
Furthermore, it is preferable that the first structural member includes an accommodating groove; the pushing piece comprises a spring positioned in the accommodating groove and a push rod abutted against one end of the spring; the push rod extends out from the accommodating groove.
In addition, preferably, a strip-shaped groove extending along the axial direction of the push rod is formed on the push rod;
the hinge mechanism comprises a guide piece which is fixedly combined on the first structural member, and the guide piece comprises a limiting part correspondingly matched with the strip-shaped groove.
Furthermore, it is preferable that the locking member includes a stopper for abutting against the first structural member.
In addition, it is preferable that the hinge mechanism further includes a micro switch on the first structural member for feeding back a deployment position signal, and a trigger arm on the second structural member for triggering the micro switch.
Furthermore, it is preferable that each of the first structural member and the second structural member includes a reinforcing rib and a cutting groove.
The invention has the beneficial effects that:
according to the invention, a mode that the locking piece enters the positioning cavity for locking is adopted, the actual locking action contact is line contact, the position of the contact line has certain self-adaptability according to the requirements of the unfolding locking angle and the condition of processing precision, and high-rigidity locking can be realized; the hinge mechanism has the advantages of no clearance after locking, high rigidity, adjustable locking angle, high locking precision, light weight, high locking reliability, simple structure and capability of feeding back signals for unfolding and locking in place, and can effectively reduce the locking impact at the unfolding tail stage of the hinge.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of the hinge mechanism of the present invention deployed in position locked.
Fig. 2 is a schematic view of the hinge mechanism of the present invention in a closed state.
Fig. 3 is a sectional view of the hinge mechanism in fig. 2.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In order to adjust the solar wing spreading rear angle, the requirement of the whole wing spreading planeness is met, meanwhile, the spreading impact force can be effectively reduced, and the high spreading rear rigidity is achieved. The present invention provides a hinge mechanism, as shown in fig. 1 to 3, specifically, the hinge mechanism includes: a first structural member; and a second structural member rotatably connected to the first structural member; an elastic part used for providing a rotating acting force is arranged between the first structural part and the second structural part; the hinge mechanism further comprises a locking assembly configured on the first structural member; the locking assembly comprises a locking piece which can rotate relative to the first structural member and a pushing piece which is used for pushing the locking piece to rotate; a positioning cavity is formed on the second structural part; the locking piece is configured to be contacted with the second structural piece when the second structural piece rotates relative to the first structural piece under the action of a rotating force, and the locking piece is abutted and fixed in the positioning cavity through the pushing of the pushing piece, so that the relative positions of the first structural piece and the second structural piece are fixed, relative movement does not occur any more, and the unfolding angle of the hinge mechanism is fixed.
In this embodiment, the second structural member includes an arc surface 15; the cambered surface 15 is configured to contact with the locking piece and enable the locking piece to slide on the cambered surface 15 when the second structural part rotates; the surface of the positioning cavity 14 which is in contact with the locking element is a bevel. When the locking piece contacts with the second structural part, the locking piece can slide with the cambered surface 15, the pushing of the pushing piece enables the locking piece to slide into the positioning cavity 14, the plane of the locking piece contacting with the inclined surface of the positioning cavity 14 is a curved surface, and after the curved surface of the locking piece contacts with the inclined surface of the positioning cavity 14, self-locking of the locking piece in the positioning cavity 14 is achieved through setting a friction angle.
In the above embodiment, specifically, the first structural member is the male hinge 1, and the male hinge 1 has a protrusion, which is used as a mounting position for the locking shaft 6 and the locking wedge 7; the second structural part is a concave hinge 2, and the positioning cavity 14 is used as a matched locking part with the locking wedge 7; the locking piece is a locking wedge 7, the locking wedge 7 is fixed at the protruding part of the convex hinge 1 through a locking shaft 6 and can rotate around the protruding part at a certain angle; the locking shaft 6 is used for fixing the locking wedge 7 on the convex hinge 1 and is a supporting shaft for the locking wedge 7 to move relative to the convex hinge 1; the locking wedge block 7 is matched with a positioning cavity 14 on the concave hinge 2 to limit the relative movement of the convex hinge 1 and the concave hinge 2; in the unfolding process of the hinge mechanism, the locking piece is contacted with the concave hinge 2 under the action of the pushing piece until the concave hinge 2 rotates 180 degrees relative to the convex hinge 1, the locking piece is pushed into a positioning cavity 14 reserved on the concave hinge 2 by the pushing piece and is matched with an inclined plane in the positioning cavity 14 to realize the locking function, at the moment, the spring 10 also has certain elasticity to push the push rod 8 to act on the locking wedge 7 all the time, the locking wedge 7 and the inclined plane of the positioning cavity 14 generate friction force, and the self-locking of the locking wedge 7 is realized within the range of friction angles by designing the shapes of the inclined planes in the positioning cavity 14 of the locking wedge 7 and the concave hinge 2 so as to limit the locking force of the locking wedge 7.
It can be understood that the convex hinges 1 and the concave hinges 2 each comprise a connecting part for connecting the solar wing substrates; the convex hinge 1 is used as a structure for supporting the rotating shaft 5, the joint bearing 3, the micro switch 13 and the solar wing substrate, and a reinforcing rib structure is designed for improving the overall rigidity characteristic.
In a specific embodiment, the first structural member and the second structural member are connected through a rotating shaft 5; the first structural member is fixedly connected with the rotating shaft 5 through the joint bearing 3, the second structural member is fixedly combined with the rotating shaft 5, and the second structural member and the rotating shaft 5 can rotate relative to the first structural member simultaneously.
More specifically, the elastic element is a spiral spring 4, one end of the spiral spring 4 is fixedly connected to the rotating shaft 5, and the other end of the spiral spring is fixedly connected to the first structural member. The hinge comprises a convex hinge 1, a concave hinge 2, a joint bearing 3 and a volute spiral spring 4, wherein the convex hinge 1, the concave hinge 2, the volute spiral spring 4 and other parts are arranged on a rotating shaft 5, the inner ring of the joint bearing 3 is sleeved on the rotating shaft 5, the outer ring of the joint bearing 3 is fixed on the convex hinge 1, the joint bearing 3 is used for transmitting the movement between the convex hinge 1 and the concave hinge 2, lugs extending out of two sides of the concave hinge 2 are penetrated by the rotating shaft 5 and are fixedly combined with the rotating shaft 5 for limiting, the rotating shaft 5 cannot rotate relative to the concave hinge 2, the inner end of the volute spiral spring 4 is fixed with the rotating shaft 5, the torque of the volute spiral spring 4 is adjusted by adjusting the installation position of the rotating shaft 5 and the concave hinge 2, and the outer end of the volute spiral spring 4 is fixed on the convex hinge 1 through a screw. The spiral spring 4 is used for driving the convex hinge 1 and the concave hinge 2 to rotate relatively around the axis of the rotating shaft 5.
In addition, in order to ensure the locking reliability and the relative position precision of the convex hinge 1 and the concave hinge 2, the first structural member comprises an adjusting screw 11 for adjusting the unfolding planeness of the first structural member and the second structural member; the second structure piece includes the butt portion for with adjusting screw 11 butt, specifically, designs adjusting screw 11 on protruding hinge 1, through adjusting screw 11's the length of closing soon, cooperates locking voussoir 7, can adjust protruding hinge 1, the expansion plane degree of concave hinge 2, is used for concave hinge 2 and the spacing support of protruding hinge 1 when the hinge lock.
Regarding the structure of the pushing element, in one embodiment, the first structural member includes a receiving groove; the pushing piece comprises a spring 10 positioned in the accommodating groove and a push rod 8 abutted against one end of the spring 10; the push rod 8 extends out of the accommodating groove, the push rod 8 is always in contact with the locking wedge 7 under the action of the spring 10, and the locking wedge 7 is pushed into a positioning cavity 14 reserved on the concave hinge 2 to realize locking of the hinge mechanism when the hinge mechanism is unfolded in place; the spring 10 is a compression spring for driving the push rod 8 to move along the axial direction of the receiving groove.
Further, a strip-shaped groove extending along the axial direction of the push rod 8 is formed on the push rod 8; the hinge mechanism is fixed in the guide vane 9 on the first structural component including combining, guide vane 9 corresponds the spacing portion of complex including with the bar groove, spring 10 and push rod 8 and guide vane 9 are installed in the cylindrical holding tank on protruding hinge 1, penetrate the holding tank earlier spring 10 in, press push rod 8 on spring 10 in the holding tank again, later insert the bar inslot that reserves on push rod 8 with convex spacing portion on the guide vane 9, fix guide vane 9 on protruding hinge 1 again, make push rod 8 can move along the extending direction in bar groove through setting up guide vane 9, the direction of motion of effective control push rod 8, avoid push rod 8 the dead condition of local card to appear in the motion process.
In a specific embodiment, the locking member includes a stop for abutting against the first structural member. By arranging the limiting block on the locking wedge 7, the contact time of the locking wedge 7 and the concave hinge 2 can be effectively controlled, and unnecessary resistance to the unfolding process in the early unfolding stage is reduced.
In a specific embodiment, the hinge mechanism further comprises a micro switch 13 located on the first structural member and used for feeding back the unfolding in-place signal, and a trigger arm 12 located on the second structural member and used for triggering the micro switch 13, the micro switch 13 is fixed on one side of the convex hinge 1 through a screw, the trigger arm 12 is fixed on the concave hinge 2 through a screw at a position corresponding to the side, and the trigger arm 12 is used for triggering the micro switch 13, so that the micro switch 13 feeds back the unfolding in-place signal to the receiving device.
In order to improve the structural strength and reduce the weight, the first structural member and the second structural member respectively comprise reinforcing ribs and a cutting groove, the structural strength and the rigidity after expansion can be enhanced by arranging the reinforcing ribs, the self weight can be further reduced by arranging the cutting groove, the rigidity of the hinge mechanism can be effectively improved by matching the cutting groove, and meanwhile, the weight reduction effect is better.
In a specific implementation process, when the hinge mechanism is in a folded state, the positions of the sun wing substrate on the convex hinge 1 and the sun wing substrate on the concave hinge 2 are relatively parallel, the trigger arm 12 and the micro switch 13 are in a separated state, the micro switch 13 is not triggered, at this time, the push rod 8 is pushed out of the accommodating groove on the convex hinge 1 along the guide of the guide sheet 9 by the spring 10, the residual pressure of the spring 10 finally acts on the locking wedge 7, the locking wedge 7 rotates around the locking shaft 6 until the outermost end of the convex part of the convex hinge 1 reaches a stable state, and a larger torque is stored on the spiral spring 4.
When the hinge mechanism is unfolded to be in place and locked, the locking wedge 7 touches the arc surface 15 of the concave hinge 2 and rotates around the locking shaft 6 along the direction same as the moving direction of the concave hinge 2 under the action of the concave hinge 2, the push rod 8 moves leftwards along the axial direction of the accommodating groove of the convex hinge 1 under the action of the guide sheet 9, and the elasticity of the spring 10 is increased after being compressed.
When the hinge mechanism is unfolded to the in-place and locked, the locking wedge 7 rotates to the positioning cavity 14 on the concave hinge 2 around the locking shaft 6 under the pushing of the locking push rod 8, the top surface of the locking wedge 7 is a curved surface and self-locking is realized through a friction angle with an inclined surface in the positioning cavity 14 of the concave hinge 2, the adjusting screw 11 is in contact with the abutting part of the concave hinge 2 to play a reverse limiting role, and the trigger arm 12 triggers the microswitch 13 to feed back an unfolding and locking in-place signal.
It can be understood that the convex hinge connecting part and the concave hinge connecting part described in the present invention can be modified in adaptability, and have wide adaptability to different substrate thicknesses.
The hinge mechanism in the invention has completed ground related identification test, and the hinge mechanism designed by referring to the invention can also be applied to other unfolding mechanisms such as antennas and the like.
In conclusion, the locking mechanism adopts a mode that the locking piece enters the positioning cavity for locking, the actual locking action contact is line contact, the position of the contact line has certain self-adaptability according to the requirements of the unfolding locking angle and the condition of processing precision, and high-rigidity locking can be realized; the hinge mechanism has the advantages of no clearance after locking, high rigidity, adjustable locking angle, high locking precision, light weight, high locking reliability, simple structure and capability of feeding back signals for unfolding and locking in place, and can effectively reduce the locking impact at the unfolding tail stage of the hinge.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (10)
1. A hinge mechanism, comprising:
a first structural member; and
a second structural member rotatably connected to the first structural member;
an elastic part used for providing a rotating acting force is arranged between the first structural part and the second structural part;
the hinge mechanism further comprises a locking assembly configured on the first structural member;
the locking assembly comprises a locking piece which can rotate relative to the first structural member and a pushing piece which is used for pushing the locking piece to rotate;
a positioning cavity is formed on the second structural part;
the locking piece is configured to be in contact with the second structural piece when the second structural piece rotates relative to the first structural piece under the action of the rotating force, and the locking piece is abutted and fixed in the positioning cavity through the pushing of the pushing piece.
2. A hinge mechanism according to claim 1, wherein the first structure is connected to the second structure via a pivot; the first structural member is connected and fixed with the rotating shaft through a joint bearing, the second structural member is combined and fixed with the rotating shaft, and the second structural member and the rotating shaft can rotate relative to the first structural member simultaneously.
3. A hinge mechanism according to claim 2, wherein the elastic member is a spiral spring, one end of the spiral spring is fixedly coupled to the rotary shaft, and the other end of the spiral spring is fixedly coupled to the first structural member.
4. A hinge mechanism according to claim 1, wherein the second structure includes an arcuate surface; the cambered surface is configured to be in contact with the locking piece and enable the locking piece to slide on the cambered surface when the second structural piece rotates;
the surface of the positioning cavity contacting with the locking piece is a slope.
5. A hinge mechanism according to claim 1, wherein the first structure includes an adjusting screw thereon for adjusting the unfolding flatness of the first structure and the second structure; the second structural member includes an abutment portion for abutting against the adjustment screw.
6. A hinge mechanism according to claim 1, wherein the first structure includes a receiving groove; the pushing piece comprises a spring positioned in the accommodating groove and a push rod abutted against one end of the spring; the push rod extends out from the accommodating groove.
7. A hinge mechanism according to claim 6, wherein the push rod is formed with a strip-shaped groove extending in an axial direction of the push rod;
the hinge mechanism comprises a guide piece which is fixedly combined on the first structural member, and the guide piece comprises a limiting part correspondingly matched with the strip-shaped groove.
8. A hinge mechanism according to claim 1, wherein the locking member includes a stop against which the first structure abuts.
9. A hinge mechanism according to claim 1, further comprising a micro switch on the first structure for feeding back a deployment to position signal, and a trigger arm on the second structure for triggering the micro switch.
10. A hinge mechanism according to claim 1, wherein the first and second structural members each include a rib and a slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210132481.6A CN114458684B (en) | 2022-02-14 | 2022-02-14 | Hinge mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210132481.6A CN114458684B (en) | 2022-02-14 | 2022-02-14 | Hinge mechanism |
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| Publication Number | Publication Date |
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| CN114458684A true CN114458684A (en) | 2022-05-10 |
| CN114458684B CN114458684B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210132481.6A Active CN114458684B (en) | 2022-02-14 | 2022-02-14 | Hinge mechanism |
Country Status (1)
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| CN (1) | CN114458684B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992231A (en) * | 2022-08-03 | 2022-09-02 | 银河航天(北京)网络技术有限公司 | Adjustable locking mechanism and use method |
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| Publication number | Publication date |
|---|---|
| CN114458684B (en) | 2022-10-28 |
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