Satellite-rocket separating and locking mechanism

Abstract

The utility model relates to the technical field of connecting pieces, and discloses a satellite and rocket separating and locking mechanism which comprises a base, an installation cavity is formed in the bottom of the base, a limiting pipe penetrating through the bottom of the installation cavity is fixed to the bottom of the installation cavity, a first bevel gear is rotationally installed on the limiting pipe, and teeth A are arranged on the face, close to a T-shaped sliding groove, of the first bevel gear. A T-shaped sliding groove is formed in the base in the radial direction of the limiting pipe, the T-shaped sliding groove communicates with the mounting cavity, a T-shaped locking block is slidably mounted in the T-shaped sliding groove and used for locking a bolt inserted into the limiting pipe, a tooth B is arranged at the bottom of the T-shaped locking block, the tooth A is meshed with the tooth B, and a driving piece is further mounted on the base and used for driving the first bevel gear to rotate. The beneficial effects of the utility model are that the driving member drives the first bevel gear to rotate so as to drive the T-shaped locking block to slide and lock or unlock the screw rod, the separation impact is small, the separation is pollution-free, the device can be repeatedly used, the impact acceleration during the separation is reduced, and the test cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting pieces, in particular to a satellite-rocket separation locking mechanism. Background Art

[0002] At present, most artificial satellites need to be launched into space by carrier rockets. Before launch, the satellite is generally mechanically connected to the rocket's last stage through special interfaces and devices such as docking frames and explosive bolts, and the necessary electrical interface connection between the satellite and the rocket is completed through devices such as separation plugs, separation switches and cables. It is mainly used to realize functions such as satellite-rocket separation control and satellite-rocket separation status characterization.

[0003] This Chinese utility model patent (Granted Publication No. CN212172580U, Title: A Pyrotechnic Detonation Enable Circuit Based on a Satellite-Rocket Separation Plug) includes a first satellite-rocket separation plug X1F, a second satellite-rocket separation plug X2F, and an interface circuit. The pyrotechnic management module PM1 collects the satellite-rocket separation signal from the first satellite-rocket separation plug X1F, while the pyrotechnic management module PM2 collects the satellite-rocket separation signal from the second satellite-rocket separation plug X2F. A pair of contacts corresponding to the same contact signal are short-circuited at the end of the satellite cable within the rocket. This utility model utilizes an optocoupler isolation design to completely isolate the separation plug signal from the main pyrotechnic detonation and power supply pathways, improving the reliability and robustness of the separation signal used to control and enable the pyrotechnic detonation. However, the significant impact force generated by the pyrotechnic explosion can damage internal electronic and optical components. Furthermore, the pyrotechnic explosion generates contaminants that cannot be reused, resulting in high testing costs. Utility Model Content

[0004] The purpose of the utility model is to provide a satellite-rocket separation locking mechanism to overcome the shortcomings of the prior art.

[0005] The objectives of the present utility model are achieved through the following technical solutions: a star-rocket separation locking mechanism, comprising a base, a mounting cavity is provided at the bottom of the base, a limiting tube is fixed to the bottom of the mounting cavity and passes through the bottom thereof, a first bevel gear is rotatably installed on the limiting tube, and an A tooth is provided on the surface of the first bevel gear close to the T-shaped slide groove, a T-shaped slide groove is provided on the base along the radial direction of the limiting tube, the T-shaped slide groove is communicated with the mounting cavity, a T-shaped locking block is slidably installed in the T-shaped slide groove, the T-shaped locking block is used to lock the bolt inserted into the limiting tube, a B tooth is provided at the bottom of the T-shaped locking block, the A tooth is meshed with the B tooth, a driving member is also installed on the base, and the driving member is used to drive the first bevel gear to rotate.

[0006] Preferably, the driving member includes a stepper motor, a coupling and a second bevel gear. The second bevel gear is rotatably installed in the installation cavity and meshes with the first bevel gear. The rotating shaft of the stepper motor is connected to the rotating shaft of the second bevel gear through a coupling. An accommodating cavity is provided at the top of the base. The coupling is located in the accommodating cavity. The stepper motor bag is on the outer wall of the accommodating cavity.

[0007] Preferably, a cover plate is fixed on the cavity opening of the installation cavity, and an ejection member is fixed on the cover plate, and the ejection member is used to eject the unlocked bolt out of the limiting tube.

[0008] Preferably, the ejection member is a spring, and the spring is welded to the cover plate.

[0009] Preferably, the ejection component includes a spring, a fixed tube and a push rod. The fixed tube is fixed on the cover plate, and the spring is pressed into the fixed tube through the push rod. The push rod is used to tighten the bolt. An oblong through hole is opened on the side wall of the fixed tube along its axial direction. A pin is provided on the push rod, and the pin is slidably installed in the oblong through hole.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The first bevel gear is driven to rotate by the driving member, thereby driving the T-shaped locking block to slide, locking or unlocking the screw. The separation has a small impact, is pollution-free, and can be reused, thereby reducing the impact acceleration during separation and saving test costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0014] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0015] Figure 4 Schematic diagram of the installation structure of the fixed pipe;

[0016] In the figure, 1-base, 2-first bevel gear, 3-T-locking block, 4-bolt, 5-stepping motor, 6-coupling, 7-second bevel gear, 8-cover plate, 9-spring, 10-fixed tube, 11-top rod, 12-oblong through hole, 13-pin, 14-bearing, 15-baffle. DETAILED DESCRIPTION

[0017] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0021] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1-3As shown, a star-rocket separation locking mechanism includes a base 1, a mounting cavity is formed at the bottom of the base 1, a limiting tube is fixed to the bottom of the mounting cavity and passes through the bottom thereof, a first bevel gear 2 is rotatably mounted on the limiting tube (the first bevel gear 2 is rotatably mounted on the limiting tube through a bearing 14 sleeved on the limiting tube, the bearing 14 is prevented from falling off by a baffle 15 fixed to the end of the limiting tube, and the baffle 15 is fixed to the end of the limiting tube by screws), the first bevel gear 2 is provided with an A tooth on the surface close to the T-shaped slide groove, and a T-shaped groove is formed on the base 1 along the radial direction of the limiting tube. The T-shaped slide groove is connected with the installation cavity, and a T-shaped locking block 3 is slidably installed in the T-shaped slide groove. The T-shaped locking block 3 is used to lock the bolt 4 inserted into the limit tube. The bottom of the T-shaped locking block 3 is provided with B teeth, and the A teeth are engaged with the B teeth. A driving member is also installed on the base 1, and the driving member is used to drive the first bevel gear 2 to rotate. The first bevel gear 2 is driven to rotate by the driving member, thereby driving the T-shaped locking block 3 to slide, locking or unlocking the screw, with small separation impact, no pollution during separation, and reusable, which reduces the impact acceleration during separation and saves test costs.

[0024] In this embodiment, if Figure 1-3 As shown, the driving part includes a stepper motor 5, a coupling 6 and a second bevel gear 7. The second bevel gear 7 is rotatably mounted in the mounting cavity through a bearing 14 and meshes with the first bevel gear 2. The rotating shaft of the stepper motor 5 is connected to the rotating shaft of the second bevel gear 7 through the coupling 6. An accommodating cavity is opened at the top of the base 1, and the coupling 6 is located in the accommodating cavity. The stepper motor 5 is mounted on the outer wall of the accommodating cavity, and the stepper motor 5 can quickly respond to the separation requirement.

[0025] In this embodiment, if Figure 1-3 As shown, a cover plate 8 is fixed on the cavity opening of the installation cavity, and an ejection member is fixed on the cover plate 8. The ejection member is used to eject the unlocked bolt 4 out of the limiting tube, and the ejection member can be used to quickly separate the bolts.

[0026] In this embodiment, if Figure 1-3 As shown, the ejection component is a spring 9, which is welded to the cover plate 8. It has a simple structure and low production cost, but poor stability. The compressed spring 9 is prone to distortion, which affects the ejection effect.

[0027] In this embodiment, if Figure 4 As shown, the ejection component includes a spring 9, a fixed tube 10 and a push rod 11. The fixed tube 10 is fixed on the cover plate 8. The spring 9 is pressed into the fixed tube 10 through the push rod 11. The push rod 11 is used to tighten the bolt 4. An oblong through hole 12 is opened on the side wall of the fixed tube 10 along its axial direction. A pin 13 is provided on the push rod 11. The pin 13 is slidably installed in the oblong through hole 12. The structure is relatively complex, but it has high stability and good ejection effect.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A satellite-rocket separation locking mechanism, comprising a base (1), wherein a mounting cavity is provided at the bottom of the base (1), and a limiting tube penetrating the bottom of the mounting cavity is fixed to the bottom of the mounting cavity, characterized in that: The base (1) is provided with a T-shaped groove along the radial direction of the limiting tube, the T-shaped groove is communicated with the mounting cavity, a first bevel gear (2) is rotatably mounted on the limiting tube, an A tooth is arranged on the surface of the first bevel gear (2) close to the T-shaped groove, a T-shaped locking block (3) is slidably mounted in the T-shaped groove, the T-shaped locking block (3) is used to lock a bolt (4) inserted into the limiting tube, a B tooth is arranged at the bottom of the T-shaped locking block (3), the A tooth meshes with the B tooth, and a driving member is also mounted on the base (1), the driving member is used to drive the first bevel gear (2) to rotate.

2. A satellite-rocket separation locking mechanism according to claim 1, characterized in that: The driving member comprises a stepper motor (5), a coupling (6) and a second bevel gear (7); the second bevel gear (7) is rotatably mounted in the mounting cavity and meshes with the first bevel gear (2); the rotating shaft of the stepper motor (5) is connected to the rotating shaft of the second bevel gear (7) via the coupling (6); a receiving cavity is provided at the top of the base (1); the coupling (6) is located in the receiving cavity; and the stepper motor (5) is mounted on the outer wall of the receiving cavity.

3. The satellite-rocket separation locking mechanism according to claim 1, characterized in that: A cover plate (8) is fixed on the cavity opening of the installation cavity, and an ejection member is fixed on the cover plate (8), wherein the ejection member is used to eject the unlocked bolt (4) out of the limiting tube.

4. The satellite-rocket separation locking mechanism according to claim 3, characterized in that: The ejection member is a spring (9), and the spring (9) is welded to the cover plate (8).

5. The satellite-rocket separation locking mechanism according to claim 3, characterized in that: The ejection member comprises a spring (9), a fixed tube (10) and a push rod (11); the fixed tube (10) is fixed on the cover plate (8); the spring (9) is pressed into the fixed tube (10) through the push rod (11); the push rod (11) is used to tighten the bolt (4); an oblong through hole (12) is provided on the side wall of the fixed tube (10) along the axial direction thereof; a pin (13) is provided on the push rod (11); the pin (13) is slidably mounted in the oblong through hole (12).

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