CN210761374U - Sun wing spreading mechanism - Google Patents

Abstract

The utility model relates to a sun wing spreading mechanism, include: public hinge, female hinge, pivot, annular gasket, torsion spring, nut, the utility model discloses the solar wing that sets up opens the mechanism light in weight, intensity height, space are little, simple structure, are provided with annular gasket and cold-proof welding cover between the position contact surface of activity and can effectively prevent that the vacuum cold welding effect from producing, the utility model discloses set up bellying and female hinge left side wall at public hinge right side wall and set up concave part, utilize the vacuum cold welding effect, make public hinge and female hinge contact surface form the cold welding, accomplish the locking function between public hinge and the female hinge.

Description

Sun wing spreading mechanism

Technical Field

The utility model relates to a space satellite technical field, concretely relates to sun wing spreading mechanism.

Background

The solar wing is a device for collecting solar energy and supplying energy to the space satellite, and is an energy source of the space satellite. The space satellite is limited by a carrying space in a launching state, the solar wings are required to be folded and collected on the side walls of the satellite in a launching stage, and the solar wings of the satellite are unfolded into a plane shape after the satellite is separated from the rocket.

The unfolding mechanism of the satellite solar wing plays an important role in the launching and running processes of the satellite, the unfolding of the solar wing is a very important link for the satellite to enter a real working state, if the solar wing cannot be unfolded, the satellite loses working capacity due to gradual reduction of residual energy of a battery, and the service life of the satellite in orbit flight is further seriously influenced, so that the unfolding mechanism of the satellite solar wing is a key component for ensuring the normal running of the satellite.

The common solar wing spreading mechanisms at present are divided into two types: the active and passive solar wing mechanism is generally used as a repeatable folding and unlocking type solar wing mechanism, is applied to a large satellite more frequently, is driven by a motor generally, but consumes power resources and has a more complex structure.

For the microsatellite, the solar wing is usually unfolded by adopting passive driving, the solar wing is usually driven by a spring, the spring is pre-stressed to store potential energy of the spring during folding, and after the mechanism is unlocked, the spring releases the elastic potential energy to realize unfolding of the mechanism. However, when the requirement of the microsatellite on the solar wing cloth piece is strict in volume and weight, the conventional structural form cannot be met, and meanwhile, the vacuum cold welding effect exists in a vacuum environment, so that the moving part needs to be provided with a means for preventing the vacuum cold welding.

Therefore, it is particularly important for the microsatellite to design a solar wing spreading mechanism which has light weight, high strength, small space, simple structure and can prevent the vacuum cold welding effect from being generated.

Disclosure of Invention

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a solar wing opening mechanism which has light weight, high strength, small space, simple structure, and prevents the vacuum cold welding effect from being generated, and the present invention is achieved by the following technical solutions.

A solar wing spreading mechanism comprising: the hinge comprises a male hinge, a female hinge, a rotating shaft, an annular gasket, a torsion spring and a nut;

the male hinge is of a U-shaped structure, an ear hole A and an ear hole B are distributed above and below the male hinge, the ear hole A and the ear hole B are coaxial, a limiting groove A is arranged below the ear hole A, a boss with a triangular cross section is arranged on the right side wall of the male hinge, and two through holes are formed in the mounting surface of the male hinge; the female hinge is of a U-shaped structure, an ear hole C and an ear hole D are distributed above and below the female hinge, the ear hole C and the ear hole D are coaxial, a limiting groove B is arranged above the ear hole D, a groove part with a triangular section is arranged on the left side wall of the female hinge, and two through holes are formed in the mounting surface of the female hinge;

the two ends of the rotating shaft are provided with threaded parts, the diameter of each threaded part is smaller than that of the middle part of the rotating shaft, and the middle part of the rotating shaft is sleeved with a cold welding prevention sleeve;

the male hinge and the female hinge are connected through a rotating shaft, and the rotating shaft penetrates through the ear hole A, the ear hole B, the ear hole C and the ear hole D;

the number of the annular gaskets is four, two of the annular gaskets are respectively arranged between two adjacent faces of the ear hole A and the ear hole C, two adjacent faces of the ear hole B and the ear hole D, and the other two annular gaskets are respectively sleeved at two ends of the rotating shaft and are positioned at the outer sides of the ear hole C and the ear hole D;

the torsion spring is made of spring steel, two ends of the torsion spring are provided with extending parts, the torsion spring is sleeved on the cold-proof welding sleeve, and the extending parts at two ends of the torsion spring are respectively positioned in the limiting groove A and the limiting groove B;

the number of the nuts is two, and the nuts are respectively arranged on the thread parts at the two ends of the rotating shaft.

The utility model discloses beneficial effect:

the utility model discloses the sun wing that sets up opens the mechanism light in weight, intensity height, space are little, simple structure, are provided with annular gasket and cold-proof welding cover between the activity position contact surface and can effectively prevent that the vacuum cold welding effect from producing.

The utility model discloses set up bellying and female hinge left side wall at public hinge right side wall and set up concave part, utilize the vacuum cold welding effect, make public hinge and female hinge contact surface form the cold welding, accomplish the locking function between public hinge and the female hinge.

Drawings

Fig. 1 is a front view of a sun wing opening mechanism.

Fig. 2 is a right side view of the male hinge.

Fig. 3 is a left side view of the female hinge.

Fig. 4 is a view showing the structure of the rotary shaft.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In addition, for the purpose of more clearly describing the present invention, parts not connected with the present invention will be omitted from the drawings.

As shown in fig. 1 to 4, a solar wing spreading mechanism includes: the hinge comprises a male hinge 100, a female hinge 200, a rotating shaft 300, an annular gasket 400, a torsion spring 500 and a nut 600;

as shown in fig. 1 and 2, the male hinge 100 is of a U-shaped structure, the male hinge 100 is provided with an ear hole a101 and an ear hole B102 at the upper and lower parts, the ear hole a101 and the ear hole B102 are coaxial, a limiting groove a103 is arranged below the ear hole a101, a boss 104 with a triangular cross section is arranged on the right side wall of the male hinge 100, two through holes are arranged on the mounting surface of the male hinge 100 for connecting with a sun wing, and the male hinge 100 is made of an aluminum alloy material;

as shown in fig. 1 and 3, the female hinge 200 is a U-shaped structure, the upper and lower parts of the female hinge 200 are provided with an ear hole C201 and an ear hole D202, the ear hole C201 and the ear hole D202 are coaxial, a limit groove B203 is arranged above the ear hole D202, a groove portion 204 with a triangular cross section is arranged on the left side wall of the female hinge 200, two through holes are arranged on the mounting surface of the female hinge 200 for connecting with a solar wing, and the female hinge 200 is made of an aluminum alloy material;

as shown in fig. 1 and 4, two ends of the rotating shaft 300 are threaded portions, the diameter of the threaded portions is smaller than that of the middle portion of the rotating shaft 300, a cold welding prevention sleeve 301 is sleeved on the middle portion of the rotating shaft 300, and the cold welding prevention sleeve 301 is made of polytetrafluoroethylene;

as shown in fig. 1, the male hinge 100 and the female hinge 200 are connected through a rotating shaft 300, the rotating shaft 300 passes through the ear hole a101, the ear hole B102, the ear hole C201 and the ear hole D202, and because the cold welding prevention sleeve 301 is arranged in the middle of the rotating shaft 300, the cold welding does not occur at the contact part of the rotating shaft 300 and the male hinge 100 and the female hinge 200;

as shown in fig. 1, the number of the annular gaskets 400 is four, and the annular gaskets are made of polytetrafluoroethylene, two of the annular gaskets are respectively arranged between two adjacent surfaces of the ear hole a101 and the ear hole C201, and between two adjacent surfaces of the ear hole B102 and the ear hole D202, so as to prevent the male hinge 100 and the female hinge 200 from cold welding, and the other two annular gaskets are respectively sleeved at two ends of the rotating shaft 300 and are located at the outer sides of the ear hole C201 and the ear hole D202;

as shown in fig. 1, the torsion spring 500 is made of spring steel, two ends of the torsion spring 500 are provided with extending portions, a gap is left between coils of the torsion spring 500 to prevent cold welding, the torsion spring 500 is sleeved on the cold welding prevention sleeve 301, and the extending portions of the two ends of the torsion spring 500 are respectively located in the limiting groove a103 and the limiting groove B203 to prevent the torsion spring 500 from being unstable;

as shown in fig. 1, the number of the nuts 600 is two, and the nuts are respectively mounted on the threaded portions at two ends of the rotating shaft 300 to prevent the male hinge 100 and the female hinge 200 from sliding axially along the rotating shaft 300;

as shown in fig. 1, 2, and 3, after the torsion spring 500 is completely unfolded, an included angle of 180 degrees is formed between the male hinge 100 and the female hinge 200, the protrusion 104 is tightly attached to the groove 204, and a vacuum cold welding effect is utilized to form a cold welding on a contact surface between the male hinge 100 and the female hinge 200, thereby completing a locking function between the male hinge 100 and the female hinge 200.

According to the present embodiment, the maximum deployment angle of the sun-wing deployment mechanism is 180 degrees.

According to this embodiment, the sun wing opening mechanism is installed between the two sun wings.

The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described above. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (6)

1. A solar wing spreading mechanism comprising: the hinge comprises a male hinge (100), a female hinge (200), a rotating shaft (300), an annular gasket (400), a torsion spring (500) and a nut (600);

the method is characterized in that: the male hinge (100) is of a U-shaped structure, ear holes A (101) and B (102) are distributed above and below the male hinge (100), the ear holes A (101) and B (102) are coaxial, a limiting groove A (103) is arranged below the ear hole A (101), a boss (104) with a triangular cross section is arranged on the right side wall of the male hinge (100), and two through holes are formed in the mounting surface of the male hinge (100);

the female hinge (200) is of a U-shaped structure, an ear hole C (201) and an ear hole D (202) are vertically distributed on the female hinge (200), the ear hole C (201) and the ear hole D (202) are coaxial, a limiting groove B (203) is arranged above the ear hole D (202), a groove part (204) with a triangular section is arranged on the left side wall of the female hinge (200), and two through holes are formed in the mounting surface of the female hinge (200);

the two ends of the rotating shaft (300) are provided with threaded parts, the diameter of each threaded part is smaller than that of the middle part of the rotating shaft (300), and the middle part of the rotating shaft (300) is sleeved with a cold welding prevention sleeve (301);

the male hinge (100) is connected with the female hinge (200) through a rotating shaft (300), and the rotating shaft (300) penetrates through the ear hole A (101), the ear hole B (102), the ear hole C (201) and the ear hole D (202);

the number of the annular gaskets (400) is four, two of the annular gaskets are respectively arranged between two adjacent faces of the ear hole A (101) and the ear hole C (201), two of the annular gaskets are arranged between two adjacent faces of the ear hole B (102) and the ear hole D (202), and the other two annular gaskets are respectively sleeved at two ends of the rotating shaft (300) and are positioned at the outer sides of the ear hole C (201) and the ear hole D (202);

the torsion spring (500) is made of spring steel, two ends of the torsion spring (500) are provided with extending parts, the torsion spring (500) is sleeved on the cold welding prevention sleeve (301), and the extending parts at the two ends of the torsion spring (500) are respectively positioned in the limiting groove A (103) and the limiting groove B (203);

the number of the nuts (600) is two, and the nuts are respectively arranged on the thread parts at the two ends of the rotating shaft (300).

2. A solar wing opening mechanism according to claim 1, characterized in that: the male hinge (100) is made of aluminum alloy.

3. A solar wing opening mechanism according to claim 1, characterized in that: the female hinge (200) is made of aluminum alloy.

4. A solar wing opening mechanism according to claim 1, characterized in that: the cold welding prevention sleeve (301) is made of polytetrafluoroethylene.

5. A solar wing opening mechanism according to claim 1, characterized in that: the annular gasket (400) is made of polytetrafluoroethylene.

6. A solar wing opening mechanism according to claim 1, characterized in that: gaps are reserved among the coils of the torsion spring (500).

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