High-magnitude impact micro-displacement impact ring

Abstract

The invention provides a high-magnitude impact micro-displacement impact ring which comprises a mounting cover plate, a plurality of layer rings with the same structure and a bottom plate, and at least three layers of isolation surfaces are formed. Labyrinth type structural layout is adopted, an isolation interface and a supporting point are designed through structural parameters, shock waves are attenuated layer by layer in the transmission process, tiny deformation can be guaranteed, impact energy is attenuated, all elements are made of metal materials, good environment weather resistance is achieved under the high-temperature environment, the low-temperature environment, a certain salt mist environment and a certain mould environment, and the service life of the device is prolonged. And the three-way impact isolation requirement is met.

Description

Technical Field

[0001] The invention belongs to the field of antenna shock isolation devices, and in particular relates to a high-level impact micro-displacement impact ring. Background Art

[0002] Due to the mechanical environment of numerous high-frequency explosions and shocks in certain weapon models, standalone products like phased array antennas and integrated antennas require shock absorption and isolation. These shocks can affect antenna signal reception at the mildest level, while severe ones can damage connections and lead to product failure. To address these issues, product designers incorporate vibration dampers or other flexible structural components into antennas to mitigate these mechanical conditions.

[0003] The current problem with adding flexible structures is that in order to effectively reduce impact energy, the vibration absorber or other flexible components need to have a smaller stiffness so that the energy received by the antenna product can be released over a fairly long period of time, reducing the impact force. At the same time, the energy is further dissipated through structural damping or damping elements in the vibration absorber. However, in order to ensure that signal reception is not affected by interference from other structures, the impact displacement of antenna products must not be too large. In other words, the displacement of the product is limited under the buffering and shock isolation requirements, and the impact energy received by the antenna needs to be isolated and protected and dissipated in a limited space.

[0004] Traditional shock isolation devices use flexible materials or high-deflection structures to isolate vibration and impact energy from the product and underlying equipment. This energy is dissipated through internal damping, and overall stiffness is reduced to extend response time and reduce impact force. Antennas on missiles and rockets often have limited mounting space. When impact excitation is transmitted to the antenna, either the force is too strong, causing structural damage, or excessive impact displacement can narrow the natural signal receiving surface, affecting signal reception. Traditional shock isolation solutions are not feasible for antenna equipment with sensitive displacement requirements.

[0005] Therefore, it is necessary to design an antenna-type micro-displacement shock isolation device that can isolate the impact of large-scale high-frequency explosions. The impact energy at locations such as the engine is transferred to the shock isolation device through the external shell structure, and the shock isolation device is then transferred to the antenna. The micro-displacement shock isolation device increases the interface through structural design, forcing the impact energy to continuously attenuate along a relatively complex transmission path. In addition, the micro-displacement shock isolation device has high rigidity and can effectively fix and install antenna products. On the other hand, the impact energy is attenuated at the complex transmission interface and then transferred to the antenna product, which can ensure that its signal reception is not affected by the environment and improve the stability of product performance. Summary of the Invention

[0006] The present invention aims to provide a high-impact micro-displacement impact ring to address the aforementioned problems in the prior art. Under a high-impact impact of 40,000g, the present invention exhibits a three-dimensional impact isolation effect, with a maximum response value of less than 4,000g, indicating an isolation efficiency greater than 90%. Furthermore, the impact isolation device is salt spray and mold resistant and contains no non-metallic materials. Furthermore, the impact isolation device exhibits a displacement of less than 0.5mm under impact conditions, features a simple interface, and a reliable structure, conforming to lightweight design principles.

[0007] This technology increases the shock wave transmission path and energy transfer interface, reducing damage to the equipment caused by the excitation source. Furthermore, missiles and rockets often face requirements for high and low temperature resistance, salt spray resistance, and mold resistance, as well as long-term storage. Therefore, traditional non-metallic materials used for vibration and shock absorption also face challenges such as insufficient environmental resistance and performance degradation or failure due to aging.

[0008] The high-level impact micro-displacement impact ring of the present invention includes: a mounting cover plate, multiple layer rings, and a bottom plate; the upper surface of the mounting cover plate is a mounting surface, with through holes at the four corners, and is connected to the isolated equipment by bolts or screws, the upper surface of the mounting cover plate is a plane, the mounting holes are countersunk holes, and the lower surface is designed as 8 coplanar bosses with through holes on the bosses. The bosses are used to isolate the interface between the mounting cover plate and the layer rings, which is the first isolation surface for shock wave transmission, and the mounting cover plate is threadedly connected to the layer rings through 8 screws; 8 threaded holes and 8 through holes are evenly distributed on the surface of the layer rings, and the through holes are countersunk tapered holes, and the lower surface is 8 coplanar bosses; the layer rings are isolated from each other by the 8 bosses of the upper layer ring, which is the intermediate isolation surface for shock wave transmission, and the upper layer ring is threadedly connected to the lower layer ring through 8 screws; the 8 bosses of the lowest layer ring isolate the bottom plate, which is the last isolation surface for shock wave transmission, and the layer ring is threadedly connected to the bottom plate through 8 screws.

[0009] The beneficial effects of the present invention are as follows:

[0010] 1. The present invention adopts a labyrinthine structural layout, and isolates interfaces and support points through structural parameter design, so that the shock wave transmission process is attenuated layer by layer, and can ensure small deformation (≤0.5mm), attenuating the impact energy, and realizing micro-displacement isolation in high-level impact environments;

[0011] 2. The present invention is made of all-metal material and has good environmental weather resistance; all components are made of metal materials and have good environmental weather resistance in high and low temperature (-15℃~100℃) and certain salt spray and mold environments;

[0012] 3. The present invention adopts structural designs such as shock wave isolation surface and multi-point support, so that the impact energy in multiple directions can be attenuated, so that the product can meet the three-way shock isolation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which constitute a part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention.

[0014] Figure 1 1 is an outline diagram of a high-level impact micro-displacement impact ring according to an embodiment of the present invention;

[0015] Figure 2 2. This is a structural diagram of a high-level impact micro-displacement impact ring according to an embodiment of the present invention;

[0016] Figure 3 1. This is an outline diagram of a mounting cover plate for a high-level impact micro-displacement impact ring according to an embodiment of the present invention;

[0017] Figure 4 1. This is an outline diagram of layer ring a of a high-level impact micro-displacement impact ring according to an embodiment of the present invention;

[0018] Figure 5 1. It is an external view of the bottom plate of the high-level impact micro-displacement impact ring according to an embodiment of the present invention.

[0019] Among them: 1-installation cover, 2-layer ring a, 3-layer ring b, 4-base plate DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0021] This embodiment provides a high-level impact micro-displacement impact ring, which is composed of four parts, such as Figure 1-2 As shown, the cover plate 1, layer ring a2, layer ring b3, and bottom plate 4 are installed respectively. Figure 3 、 Figure 4 、 Figure 5 The structures of the installation cover plate, layer ring and bottom plate are shown respectively.

[0022] The upper surface of the installation cover 1 is the installation surface, and there are through holes at the four corners. It is connected to the isolated equipment by bolts, and can also be connected by threaded holes and screws. The upper surface of the installation cover 1 is flat, and the installation holes are countersunk holes so that there are no protrusions on the installation surface, ensuring that the installation surface is flush and free of structural interference. The lower surface is designed as 8 coplanar bosses with through holes on the bosses. The bosses are used to isolate the interface between the installation cover 1 and the layer ring a2, which is the first isolation surface for shock wave transmission. The installation cover 1 is threadedly connected to the layer ring 2 by 8 screws. There are 8 threaded holes and 8 through holes evenly distributed on the surface of the layer ring a2. The through holes are countersunk tapered holes, which also ensure that there are no protrusions on the upper surface of the layer ring. The table below shows 8 coplanar bosses. In this solution, the layer ring is two-layered, with completely consistent structures and installation directions. In fact, multiple layers can be arranged as needed, but the overall stiffness problem needs to be considered. Layer ring a2 is separated from layer ring b3 by its eight bosses, forming the second isolation surface for shock wave transmission. Layer ring a2 is threadedly connected to layer ring b3 via eight screws. Layer ring b3's eight bosses isolate the base plate, forming the third isolation surface for shock wave transmission. Layer ring b3 is threadedly connected to base plate 4 via eight screws.

[0023] This embodiment includes two layer rings connected in series. The overall stiffness of the product is related to the number of layer rings in series. The clearances between the layer rings and the mounting cover, between the layer rings, and between the layer rings and the base plate are guaranteed by the height of the boss structure. This clearance can also be reduced to allow for more layer rings to be installed within the limited height, improving the product's shock isolation performance. These gaps also ensure that the product will be held in place after a significant impact, providing overload protection for the equipment being isolated.

[0024] The impact ring base plate is connected to the shell or base of the missile, and the protected equipment is connected to the impact ring mounting cover. After the impact ring and the protected equipment are installed, when the equipment and foundation are impacted and a relatively large impact force is generated, the deformation starts from the layer ring because the relative stiffness of the layer ring structure is smaller than that of the mounting cover and base. The impact energy is transferred from the basic equipment to the base plate. The installation interface between the base plate and the layer ring realizes the first attenuation of the shock wave. The shock wave is transmitted to the interface between the two layer rings, which is the second attenuation. It is then transmitted to the mounting cover, which is the third attenuation. At this time, the residual energy of the impact is transmitted to the protected equipment through the mounting cover. Under the actual high-level impact mechanics environment, the maximum displacement of the ring is less than 0.5mm under the impact condition of 40,000g in the three-axis direction, and the response acceleration is less than 4000g.

[0025] The high-level impact micro-displacement impact ring of this embodiment does not break when subjected to 10 to 20 times the rated load, with a load of 0.8 kg ± 0.2 kg. It is a labyrinth-type shock isolation structure. The three-dimensional maximum displacement deformation of the impact ring is achieved by designing the structural dimensions to meet different stiffness requirements, and is suitable for the shock isolation requirements of high-level micro-displacement.

[0026] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-level impact micro-displacement impact ring, characterized in that: include: Install the cover plate, multiple layer rings with the same structure, and the base plate; The upper surface of the mounting cover is a mounting surface with through holes at the four corners, which are connected to the isolated equipment by bolts or screws. The upper surface of the mounting cover is flat, and the mounting holes are countersunk holes. The lower surface is designed as 8 coplanar bosses with through holes on the bosses. The bosses are used to isolate the mounting cover from the interface of the layer ring and serve as the first isolation surface for shock wave transmission. The mounting cover is threadedly connected to the layer ring by 8 screws. The surface of the layer ring is evenly distributed with 8 threaded holes and 8 through holes. The through holes are countersunk cone holes, and the lower surface is 8 coplanar bosses. The layer rings are isolated from each other by the 8 bosses of the upper layer ring, which serve as the intermediate layer isolation surface for shock wave transmission. The upper layer ring is threadedly connected to the lower layer ring by 8 screws. The eight bosses of the lowest ring isolate the bottom plate, which is the last isolation surface for shock wave transmission. The ring is threadedly connected to the bottom plate through eight screws.

2. A high-level impact micro-displacement impact ring according to claim 1, characterized in that: There are two layer rings.

3. The high-level impact micro-displacement impact ring according to claim 1, characterized in that: The impact ring is made of all-metal material.

4. The high-level impact micro-displacement impact ring according to claim 1, characterized in that: When setting the number of layer rings, the overall stiffness should be taken into consideration.

5. The high-level impact micro-displacement impact ring according to claim 1, characterized in that: It has three-way shock isolation effect.

6. The high-level impact micro-displacement impact ring according to claim 2, characterized in that: The isolation efficiency is greater than 90%.

7. The high-level impact micro-displacement impact ring according to claim 2, characterized in that: The displacement under impact conditions is less than 0.5mm.

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