A deployment locking mechanism

Abstract

The utility model discloses an unfolding locking mechanism, including fixed part, rotating part, locking part, axle part, be equipped with slide, sliding slot, bearing mounting hole, limit rod mounting hole on the fixed part, the locking part includes locking tablet, pivot, gasket, locking frame, locking axle, pin, the axle part includes spring, screw, axle, axle sleeve, baffle, bearing, inclined axle sleeve, the fixed part is connected through axle part between rotating part, the locking frame rotates around the pivot, one end of locking tablet is fixed on rotating part, and the other end is pressed tightly locking frame, and keeps locking axle and is pressed tightly on the slide, locking axle is contacted and slides on the slide, when locking axle slides to the sliding slot, locking axle is pressed into the sliding slot inside under the action of locking tablet, realizes locking function. The utility model provides an unfolding locking mechanism, possesses big angle locking, high stiffness and is pressed tightly the characteristics, provides new train of thought and method for the unfolding locking class product of spacecraft.

Description

Technical Field

[0001] This utility model relates to the field of aerospace deployment mechanism technology, specifically to a deployment locking mechanism. Background Technology

[0002] With the increasing diversification of functions and the growing demands for functionality in military and civilian spacecraft, the deployment angles of products mounted on spacecraft (such as solar arrays, flat panel antennas, and extendable arms) are mostly ≤180°. However, the increasing diversity of deployment configurations has led to a growing need for large-angle deployment locking mechanisms. These mechanisms must possess sufficient strength and rigidity to withstand external pressures and impacts that spacecraft may encounter during on-orbit operation. Once locked, the mechanism must maintain high reliability to prevent loosening or failure. Summary of the Invention

[0003] To solve the above problems, this utility model provides an unfolding locking mechanism, the specific technical solution of which is as follows:

[0004] An unfolding locking mechanism includes a fixed component, a rotating component, a locking component, and a shaft component;

[0005] The fixing component is used to connect the deployment locking mechanism to the satellite, thereby improving the overall connection rigidity;

[0006] The rotating component is used to provide rotational freedom for the unfolding locking mechanism;

[0007] The locking component is used to ensure that the unfolding locking mechanism is effectively locked after unfolding, so that the fixing component and the rotating component become a connected whole;

[0008] The shaft component is used to connect the fixed component and the rotating component, and to provide driving force for the unfolding process;

[0009] The fixing component includes a slide rail and a slide groove, and the locking component includes a locking pressure plate, a rotating shaft, a gasket, a locking frame, and a locking shaft.

[0010] The fixed component and the rotating component are connected by the shaft component, and the rotating component rotates around the shaft component; the rotating shaft is fixed to the rotating component by the washer; the locking frame rotates around the rotating shaft; one end of the locking plate is fixed to the rotating component, and the other end presses against the locking frame to keep the locking shaft pressed against the slide rail;

[0011] The locking shaft contacts and slides on the slide rail. When the locking shaft slides to the slide groove, it is pressed into the slide groove by the locking plate to achieve the locking function.

[0012] The fixing component is also provided with bearing mounting holes and limit rod mounting holes;

[0013] The locking component also includes a pin;

[0014] The shaft component includes a spring, screw, shaft, bushing, baffle, bearing, and inclined bushing;

[0015] The baffle plate presses the left side of the shaft tightly against the left side of the rotating component using screws; the right side of the shaft is fixedly connected to the rotating component by the pin, keeping the shaft component rotating synchronously with the rotating component; the bushing, bearing, and inclined bushing are installed on the shaft in sequence from left to right;

[0016] The outer ring of the bearing is fixedly connected to the bearing mounting hole to enable the shaft component to rotate flexibly.

[0017] Furthermore, a limiting rod is also installed on the fixing component. The limiting rod is inserted into the limiting rod mounting hole to provide a fulcrum for the spring and ensure that the spring effectively outputs driving force.

[0018] One end of the spring is inserted into the shaft, and the other end rests on one side of the limiting rod to ensure that the rotating component has kinetic energy.

[0019] Preferably, the slide is a straight line, and the angle between it and the vertical direction of the bearing mounting hole is 13.4°±0.01°.

[0020] Preferably, the distance between the slide groove and the rotating shaft is 34mm.

[0021] Preferably, the fixing component is shaped like a cam.

[0022] Preferably, the locking mechanism can be locked at different angles by adjusting the external dimensions of the fixing component and the positions of the slide rails and grooves.

[0023] Preferably, the spring is one of a torsion spring or a planar spiral spring with torsional driving force.

[0024] Preferably, the locking plate is one of a pressure spring or a cylindrical compression spring with axial thrust.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] (1) The present invention designs the fixing component as a cam shape, and the slide groove and slide rail are specially designed to achieve a large angle locking function;

[0027] (2) This utility model achieves long-term pressing of the locking frame through the locking plate, which ensures the locking rigidity of the unfolding locking mechanism;

[0028] (3) The present invention provides the driving force for the rotating part to rotate around the fixed component through the spring, and the speed control of the unfolding process is realized by adjusting the spring torque. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 is a schematic diagram of the unlocked state of the unfolding locking mechanism provided by this utility model;

[0031] Figure 2 is a schematic diagram of the locked state of an unfolding locking mechanism provided by this utility model;

[0032] Figure 3 is a schematic diagram of the horizontal state of the unfolding locking mechanism provided by this utility model;

[0033] Figure 4 is a schematic diagram showing the dimensions of the fixing component of this utility model;

[0034] Figure 5 is a schematic diagram of the application of the deployment locking mechanism provided by this utility model in a solar panel, wherein (a) is a schematic diagram of the retracted state and (b) is a schematic diagram of the deployed state at an angle θ.

[0035] The attached figures are labeled as follows: 1. Fixed component; 2. Rotating component; 3. Locking component; 4. Shaft component; 5. Locking pressure plate; 6. Spring; 7. Limiting rod; 8. Slide rail; 9. Slide groove; 10. Bearing mounting hole; 11. Rotating shaft; 12. Shim; 13. Locking frame; 14. Locking shaft; 15. Screw; 16. Shaft; 17. Bushing; 18. Baffle; 19. Bearing; 20. Inclined bushing; 21. Pin; 22. Limiting rod mounting hole. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the explanation of the embodiments of the present invention.

[0037] As shown in Figure 1, Figure 2 As shown, an unfolding locking mechanism includes a fixing component 1, a rotating component 2, a locking component 3, and a shaft component 4;

[0038] The fixing component 1 is used to connect the deployment locking mechanism to the satellite, thereby improving the overall connection rigidity;

[0039] The rotating component 2 is used to provide rotational freedom for the unfolding locking mechanism;

[0040] The locking component 3 is used to ensure that the unfolding locking mechanism is effectively locked after unfolding, so that the fixing component 1 and the rotating component 2 become a connected whole.

[0041] The shaft component 4 is used to connect the fixed component 1 and the rotating component 2, and to provide driving force for the unfolding process;

[0042] The fixing component 1 includes a slide rail 8 and a slide groove 9, and the locking component 3 includes a locking pressure plate 5, a rotating shaft 11, a gasket 12, a locking frame 13, and a locking shaft 14.

[0043] The fixed component 1 and the rotating component 2 are connected by the shaft component 4, and the rotating component 2 rotates around the shaft component 4; the rotating shaft 11 is fixed on the rotating component 2 by the washer 12; the locking frame 13 rotates around the rotating shaft 11; one end of the locking pressure plate 5 is fixed on the rotating component 2, and the other end presses against the locking frame 13, keeping the locking shaft 14 pressed against the slide rail 8;

[0044] The locking shaft 14 contacts and slides on the slide rail 8. When the locking shaft 14 slides to the slide groove 9, the locking shaft 14 is pressed into the slide groove 9 under the action of the locking plate 5 to achieve the locking function.

[0045] The fixing component 1 is also provided with a bearing mounting hole 10 and a limit rod mounting hole 22;

[0046] The locking component 3 also includes a pin 21, such as Figure 4 As shown;

[0047] The shaft component 4 includes a spring 6, a screw 15, a shaft 16, a bushing 17, a baffle 18, a bearing 19, and a slanted bushing 20.

[0048] The baffle 18 presses the left side of the shaft 16 tightly against the left side of the rotating component 2 by screws 15; the right side of the shaft 16 is fixedly connected to the rotating component 2 by the pin 21, keeping the shaft component 4 and the rotating component 2 rotating synchronously; the bushing 17, bearing 19, and inclined bushing 20 are installed on the shaft 16 from left to right.

[0049] The outer ring of the bearing 19 is fixedly connected to the bearing mounting hole 10 to enable the shaft component 4 to rotate flexibly.

[0050] The fixing component 1 is also equipped with a limiting rod 7, which is inserted into the limiting rod mounting hole 22 to provide a fulcrum for the spring 6 and ensure that the spring 6 can effectively output driving force.

[0051] One end of the spring 6 is inserted into the shaft 16, and the other end rests on one side of the limiting rod 7, in order to ensure that the rotating component 2 has kinetic energy.

[0052] like Figure 4 As shown, the slide is a straight line, and the angle between it and the vertical direction of the bearing mounting hole 10 is 13.4°±0.01°.

[0053] like Figure 4 As shown, the distance between the slide and the rotating shaft is 34mm.

[0054] The fixed component is shaped like a cam.

[0055] By adjusting the dimensions of the fixed component and the positions of the slide rails and grooves, the locking mechanism can be locked at different angles.

[0056] The spring is one of a torsion spring or a planar spiral spring with torsional driving force.

[0057] The locking plate is one of a pressure spring or a cylindrical compression spring with axial thrust.

[0058] like Figure 5 As shown in the diagram, this utility model provides a schematic diagram of the application of a deployment locking mechanism in the solar array of a CubeSat. Figure 5 a is a schematic diagram of the solar panels in the retracted state. Figure 5 b is a schematic diagram of the solar array after deployment at angle θ. The deployment locking mechanism of this utility model realizes the deployment locking of the solar array at angle θ.

[0059] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible variations and modifications to the technical solutions of the present invention using the disclosed methods and techniques without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention, without departing from the content of the technical solution of the present invention, shall fall within the protection scope of the technical solution of the present invention. Content not described in detail in this specification is common knowledge to those skilled in the art.

Claims

1. An unfolding locking mechanism, characterized in that: Includes fixed components, rotating components, locking components, and shaft components; The fixing component is used to connect the deployment locking mechanism to the satellite, thereby improving the overall connection rigidity; The rotating component is used to provide rotational freedom for the unfolding locking mechanism; The locking component is used to ensure that the unfolding locking mechanism is effectively locked after unfolding, so that the fixing component and the rotating component become a connected whole; The shaft component is used to connect the fixed component and the rotating component, and to provide driving force for the unfolding process; The fixing component includes a slide rail and a slide groove, and the locking component includes a locking pressure plate, a rotating shaft, a gasket, a locking frame, and a locking shaft; The fixed component and the rotating component are connected by the shaft component, and the rotating component rotates around the shaft component; the rotating shaft is fixed to the rotating component by the washer; the locking frame rotates around the rotating shaft; one end of the locking plate is fixed to the rotating component, and the other end presses against the locking frame to keep the locking shaft pressed against the slide rail; The locking shaft contacts and slides on the slide rail. When the locking shaft slides to the slide groove, it is pressed into the slide groove by the locking plate to achieve the locking function.

2. The deployment locking mechanism according to claim 1, characterized in that: The fixing component is also provided with bearing mounting holes and limit rod mounting holes; The locking component also includes a pin; The shaft component includes a spring, screw, shaft, bushing, baffle, bearing, and inclined bushing; The baffle plate presses the left side of the shaft tightly against the left side of the rotating component using screws; the right side of the shaft is fixedly connected to the rotating component by the pin, keeping the shaft component rotating synchronously with the rotating component; the bushing, bearing, and inclined bushing are installed on the shaft in sequence from left to right; The outer ring of the bearing is fixedly connected to the bearing mounting hole to enable the shaft component to rotate flexibly.

3. The unfolding locking mechanism according to claim 2, characterized in that: The fixing component is also equipped with a limit rod, which is inserted into the limit rod mounting hole to provide a fulcrum for the spring and ensure that the spring can effectively output driving force. One end of the spring is inserted into the shaft, and the other end rests on one side of the limiting rod to ensure that the rotating component has kinetic energy.

4. The deployment locking mechanism according to claim 2, characterized in that: The slide is a straight line, and the angle between it and the vertical direction of the bearing mounting hole is 13.4°±0.01°.

5. The unfolding locking mechanism according to claim 1, characterized in that: The distance between the slide and the rotating shaft is 34mm.

6. The unfolding and locking mechanism according to claim 1, characterized in that: The fixed component is shaped like a cam.

7. The unfolding locking mechanism according to claim 1, characterized in that: By adjusting the dimensions of the fixed component and the positions of the slide rails and grooves, the locking mechanism can be locked at different angles.

8. The unfolding locking mechanism according to claim 2, characterized in that: The spring is one of a torsion spring or a planar spiral spring with torsional driving force.

9. The unfolding locking mechanism according to claim 1, characterized in that: The locking plate is one of a pressure spring or a cylindrical compression spring with axial thrust.

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