A shock-reducing device for pyrotechnic separation

Abstract

The utility model relates to a kind of shock devices for pyrotechnic separation, comprising: link member, corresponding through hole is set in middle part, the link member is evenly distributed and is provided with several impact input areas for installing vibration impact source and several impact output areas for connecting to corresponding mounting mechanism;Damping mechanism, containing the hollow area and damping cavity between adjacent two impact input areas and impact output areas, several hollow holes are arranged in the hollow area, and corresponding damping material is filled in the damping cavity.The utility model can effectively reduce the influence of vibration shock wave generated when pyrotechnic separation device explodes on precision sensitive components under the premise of simple structure and low space occupancy.

Description

Technical Field

[0001] This utility model relates to a shock-reducing device for pyrotechnic separation, which is mainly used to connect and install a vibration and impact source to a corresponding installation structure to form a connection and installation of the vibration and impact source, thereby reducing the amount of vibration and impact on the installation structure during operation. Background Technology

[0002] To meet the deployment requirements of relevant components of spacecraft, the mounting structure containing precision sensors or data acquisition instruments is generally equipped with a pyrotechnic separation device (vibration and shock source). The vibration and shock waves generated when the pyrotechnic separation device is working can affect the performance of nearby precision and sensitive components, and in severe cases, even cause them to fail.

[0003] To reduce the vibration and shock waves generated by pyrotechnic separation devices during operation and their impact on nearby precision sensitive components, existing methods involve installing vibration-damping and shock-reducing devices on the pyrotechnic separation devices. This effectively maintains the stable installation of the pyrotechnic separation devices and reduces the impact of vibration and shock waves generated during the explosion of the pyrotechnic separation devices on precision sensitive components. For example, the utility model patent "A Vibration-Damping and Shock-Reducing Device for Connecting and Installing a Vibration and Shock Source" disclosed in patent number "CN202210655666.5" uses a support mechanism to install the shock source mounting plate. The shock source mounting plate itself requires not only a pyrotechnic separation device installation area but also a support mechanism installation area located away from the pyrotechnic separation device installation area. Furthermore, the support mechanism itself requires a series of vibration-damping components, resulting in an extremely bulky, complex, and space-consuming overall structure for the vibration-damping and shock-reducing device, which is quite cumbersome.

[0004] Therefore, the research objective of this utility model is to design a shock-reducing device for pyrotechnic separation that can effectively reduce the impact of vibration shock waves generated during the explosion of a pyrotechnic separation device on precision sensitive components, while having a simple structure and low space occupancy. Summary of the Invention

[0005] In view of the technical problems existing in the prior art, the present invention provides a pyrotechnic separation reducing device, which can effectively solve the technical problems existing in the prior art.

[0006] The technical solution of this utility model is: A pyrotechnic separation device for reducing impact, comprising: The connector has a corresponding through hole in the middle. The connector is provided with several impact input areas for installing vibration and impact sources and several impact output areas for connecting to the corresponding mounting mechanism. The vibration damping mechanism includes a hollow area and a vibration damping cavity disposed between two adjacent impact input areas and impact output areas. The hollow area has several hollow holes running through it, and the vibration damping cavity is filled with corresponding vibration damping material.

[0007] The connector is ring-shaped, and the through hole is circular and located at the center of the connector.

[0008] The hollowed-out areas are each hollowed out and have corresponding weight-reducing holes, which are arranged through the hollowed-out areas on both sides of the weight-reducing holes.

[0009] Alternatively, corresponding weight-reducing grooves may be provided on both sides of the hollowed-out area.

[0010] The perforated hole includes several staggered elongated holes perpendicular to the transmission direction of the vibration shock wave.

[0011] The hollowed-out area is located on the side near the impact input area, and the vibration damping cavity is located on the side near the impact output area.

[0012] The vibration damping material contains numerous vibration damping particles arranged in a spherical shape.

[0013] The vibration damping particles are made of metallic or polymeric materials.

[0014] The opening of the damping cavity is sealed and fixed with a cover plate for limiting the movement of the damping particles.

[0015] The impact input area and impact output area are respectively provided with corresponding locking holes.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1) The connector of this utility model is provided with a corresponding through hole in the middle, which can effectively reduce the weight of the connector while maintaining its own rigidity. Then, through the corresponding locking components, such as locking bolts, the impact output area of ​​the connector can be effectively locked and installed on the corresponding mounting mechanism. Then, through the corresponding locking components, the vibration impact source can be locked and installed on the side of the connector that is not installed on the mounting mechanism, that is, the impact input area of ​​the connector.

[0017] Building upon this, the present invention further incorporates a hollowed-out area and a vibration damping cavity between two adjacent impact input and output areas. Several perforations are drilled through the hollowed-out area, and corresponding damping material is filled into the damping cavity. This effectively extends the transmission path of the vibration shock wave generated by the vibration impact source when it passes through the hollowed-out area, thereby attenuating the impact energy. Furthermore, the vibration shock wave is effectively dissipated by the damping material when it passes through the damping cavity. Consequently, the present invention, with its simple structure and low space occupancy, can effectively reduce the impact of vibration shock waves generated during the explosion of a pyrotechnic separation device on precision sensitive components, significantly improving its adaptability.

[0018] 2) The hollow areas of this utility model are respectively provided with corresponding weight-reducing holes, or the two sides of the hollow areas are respectively provided with corresponding weight-reducing grooves. Thus, while maintaining the supporting rigidity of the connector, the weight of the connector is further effectively reduced.

[0019] 3) The hollow hole of this utility model includes several staggered elongated holes perpendicular to the transmission direction of the vibration shock wave, so that the vibration shock wave is laterally dispersed during transmission and the transmission path of the vibration shock wave is effectively extended, thereby effectively and reliably forming impact energy attenuation.

[0020] 4) The hollow area of ​​this utility model is set on the side close to the impact input area, and the damping cavity is set on the side close to the impact output area, so that the hollow area is located on the side with greater vibration shock wave energy, thereby effectively improving the energy attenuation effect. The vibration shock wave after significant energy attenuation is then effectively transmitted through the damping cavity. Under the energy dissipation of the surface friction of the damping particles, the vibration damping effect is further achieved, thereby further improving the practical effect of this utility model. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0022] Figure 2 This is a schematic diagram of a connector with a hollowed-out area and a vibration damping cavity.

[0023] Figure 3 A schematic diagram of a structure in which vibration damping material is filled into the vibration damping cavity of the connecting component.

[0024] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0025] In the attached diagram: 1. Connector 1, Through hole 101, Impact input area 102, Impact output area 103, Vibration damping mechanism 2, Hollowed-out area 201, Vibration damping cavity 202, Hollowed-out hole 3, Vibration damping material 4, Weight reduction hole 5, Weight reduction groove 6, Cover plate 7. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] Example 1: refer to Figure 1-3 A pyrotechnic separation de-impact device, comprising: Connector 1 has a corresponding through hole 101 in the middle. The connector 1 is provided with a plurality of impact input areas 102 for installing vibration and impact sources and a plurality of impact output areas 103 for connecting to the corresponding mounting mechanism. The vibration damping mechanism 2 includes a hollow area 201 and a vibration damping cavity 202 disposed between two adjacent impact input areas 102 and impact output areas 103. A plurality of hollow holes 3 are provided through the hollow area 201, and the vibration damping cavity 202 is filled with corresponding vibration damping material 4.

[0028] The connector 1 is arranged in a ring shape, and the through hole 101 is arranged in a circular shape at the center of the connector 1.

[0029] The connector 1 of this utility model is provided with a corresponding through hole 101 in the middle, which can effectively reduce the weight of the connector 1 while maintaining its own rigidity. Then, through the corresponding locking components, such as locking bolts, the impact output area 103 of the connector 1 can be effectively locked and installed on the corresponding mounting mechanism. Then, through the corresponding locking components, the vibration impact source can be locked and installed on the side of the connector 1 that is not installed on the mounting mechanism, that is, the impact input area 102 of the connector 1.

[0030] Building upon this, the present invention further provides a hollowed-out area 201 and a vibration damping cavity 202 between two adjacent impact input areas 102 and impact output areas 103. Several hollowed-out holes 3 are provided through the hollowed-out area 201, and corresponding damping material 4 is filled into the damping cavity 202. This effectively extends the transmission path of the vibration shock wave generated by the vibration impact source when it passes through the hollowed-out area 201, thereby attenuating the impact energy; while the vibration shock wave is effectively dissipated by the damping material 4 when it passes through the damping cavity 202. Thus, the present invention can effectively reduce the impact of vibration shock waves generated during the explosion of a pyrotechnic separation device on precision sensitive components, while maintaining a simple structure and low space occupancy, significantly improving the adaptability of the present invention.

[0031] The hollowed-out areas 201 are each hollowed out and have corresponding weight-reducing holes 5. The hollowed-out holes 3 are disposed through the hollowed-out areas 201 on both sides of the weight-reducing holes 5, thereby effectively reducing the weight of the connector 1 while maintaining the supporting rigidity of the connector 1.

[0032] The perforated hole 3 includes several staggered elongated holes perpendicular to the transmission direction of the vibration shock wave, so that the vibration shock wave is laterally dispersed during transmission and the transmission path of the vibration shock wave is effectively extended, thereby effectively and reliably attenuating the impact energy.

[0033] The hollow area 201 is located on one side near the impact input area 102, and the damping cavity 202 is located on one side near the impact output area 103. The damping material 4 contains a plurality of damping particles arranged in a spherical shape. The damping particles are made of metal or polymer materials.

[0034] The hollow area 201 of this utility model is located on the side close to the impact input area 102, and the vibration damping cavity 202 is located on the side close to the impact output area 103. This makes the hollow area 201 located on the side with greater vibration shock wave energy, thereby effectively improving the energy attenuation effect. The vibration shock wave with significantly attenuated energy is then effectively transmitted through the vibration damping cavity 202. Under the energy dissipation of surface friction of the vibration damping particles, a more sufficient vibration reduction and shock reduction effect is achieved, thereby further improving the practical effect of this utility model.

[0035] The opening of the damping cavity 202 is sealed and fixed with a cover plate 7 for limiting the damping particles. The impact input area 102 and the impact output area 103 are respectively provided with corresponding locking holes to facilitate the docking and installation of the connector 1 with the corresponding mounting mechanism, as well as the vibration impact source with the connector 1.

[0036] Example 2: refer to Figure 4 The difference between this embodiment and the first embodiment is that: the hollow area 201 has corresponding weight reduction grooves 6 recessed on both sides. By setting the weight reduction grooves 6, the weight of the connector 1 can be effectively reduced while maintaining the supporting rigidity of the connector 1.

[0037] It should be noted that this embodiment is implemented in the same way as the first embodiment in terms of principle and technical effect. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in the first embodiment.

[0038] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A pyrotechnic separation device for reducing impact, characterized in that, include: The connector (1) has a corresponding through hole (101) in the middle. The connector (1) has several impact input areas (102) for installing vibration and impact sources and several impact output areas (103) for connecting to the corresponding installation mechanism. The vibration damping mechanism (2) includes a hollow area (201) and a damping cavity (202) disposed between two adjacent impact input areas (102) and impact output areas (103). A plurality of hollow holes (3) are provided through the hollow area (201), and the damping cavity (202) is filled with corresponding damping material (4).

2. The pyrotechnic separation de-impact device according to claim 1, characterized in that, The connector (1) is arranged in a ring shape, and the through hole (101) is arranged in a circular shape at the center of the connector (1).

3. The pyrotechnic separation de-impact device according to claim 1, characterized in that, The hollow area (201) is provided with corresponding weight-reducing holes (5), and the hollow holes (3) are provided through the hollow areas (201) on both sides of the weight-reducing holes (5).

4. The pyrotechnic separation de-impact device according to claim 1, characterized in that, The hollow area (201) has corresponding weight-reducing grooves (6) recessed on both sides.

5. A pyrotechnic separation de-impact device according to claim 3 or 4, characterized in that, The perforated hole (3) includes several staggered elongated holes perpendicular to the transmission direction of the vibration shock wave.

6. The pyrotechnic separation de-impact device according to claim 1, characterized in that, The hollow area (201) is located on the side close to the impact input area (102), and the vibration damping cavity (202) is located on the side close to the impact output area (103).

7. The pyrotechnic separation de-impact device according to claim 1, characterized in that, The vibration damping material (4) contains a number of vibration damping particles arranged in a spherical shape.

8. The pyrotechnic separation de-impact device according to claim 7, characterized in that, The vibration damping particles are made of metallic or polymeric materials.

9. A pyrotechnic separation de-impact device according to claim 7, characterized in that, The opening of the damping cavity (202) is sealed with a cover plate (7) for limiting the damping particles.

10. A pyrotechnic separation de-impact device according to claim 1, characterized in that, The impact input area (102) and impact output area (103) are respectively provided with corresponding locking holes.

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