JPH04111789U - Anti-vibration suspension system for electronic equipment for guided flying vehicles - Google Patents

Abstract

(57) [Summary] [Purpose] To equip the body of a guided spacecraft with electronic equipment that is susceptible to vibrations and shocks, we developed a vibration-proof suspension system to insulate high-level vibrations and strong shocks over a wide frequency range. obtain. [Structure] An electronic device 1 is attached via a screw 3 to a vibration isolating rubber 2 fixed in the plane of a support 4 fixed to a housing 5. One end of a bellows-shaped rubber membrane 6 having the screw 3 as its central axis is fixed to the electronic device 1 and positioned between the electronic device 1 and the support 4, and an elastic ring 7 is attached to the other end. Position the stopper 8, which has a groove wider than the elastic ring 7, so that the elastic ring 7 is in the groove of the stopper 8, sandwich the packing 9 between it and the support 4, and insert the machine screw into the support 4. Attach by 10.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is useful for guiding electronic equipment that is susceptible to vibration and shock and requires vibration and shock insulation. Suspension devices for mounting on the body of a flying object, especially related to its vibration isolation mechanism. It is.

0002

[Conventional technology]

FIG. 2 is a sectional view showing a conventional vibration-proof suspension system for electronic equipment for guided flying vehicles. figure , 1 is an electronic device, and 2 is attached to this electronic device 1 via a screw 3. 4 is a support for fixing the anti-vibration rubber 2, and 5 is a support for the guided flying object. The support 4 is fixed to the housing.

0003 The conventional anti-vibration suspension system for electronic equipment for guided spacecraft is configured as described above, and the support Since the vibration isolating rubber 2 fixed to the seat 4 has the effect of absorbing kinetic energy, , support is provided from the body 5 of the guided missile when vibration or impact is applied to the body 5. Vibrations and shocks transmitted to the electronic device 1 via the path 4 can be reduced.

0004

[Problem that the idea aims to solve]

In the conventional anti-vibration suspension system for electronic equipment for guided flying vehicles as described above, the electronic equipment 1 Vibration containing frequency components close to the natural frequency of the spring-mass motion system consisting of the vibration isolating rubber 2 and If the electronic device 1 and the vibration isolating rubber 2 are subjected to an input of vibration or shock, the electronic device 1 and the vibration isolating rubber 2 will resonate and the electronic device Since vibrations with large amplitude, velocity, and acceleration exceeding the input are applied to the device 1, induced flying The body is subject to vibrations over a wide frequency range, or the spring-mass system is highly sensitive to shocks. It will not work as a vibration-proof suspension system for electronic equipment if it receives an impact that contains frequency components. , environmental conditions subject to high power level vibrations over a wide frequency band. As a vibration-proof suspension system for mounting electronic equipment that is susceptible to vibrations and shocks on guided flying vehicles. However, there was a problem in that the anti-vibration ability was insufficient.

[0005] This idea was made to solve this problem and covers a wide frequency band. The inside of a guided missile, which is exposed to vibrations with high power levels, is vulnerable to vibrations and shocks. To obtain an electronic device vibration-proof suspension system with sufficient vibration-proofing ability to mount a large number of electronic devices. The porpose is to do.

[0006]

[Means to solve the problem]

The anti-vibration suspension system for guided flying objects according to this invention is a vibration-isolating suspension device fixed to a support. The rubber is attached to the electronic device via a screw, and the tongue with the screw as the central axis is attached. a rubber membrane with one end fixed to the electronic device between the electronic device and the support; Attach an elastic ring to the other end. And the groove is wider than the elastic ring. Position the provided stopper so that the elastic ring is in the groove of the stopper and pack. It is attached to the support with small screws.

[0007]

[Effect]

With this idea, electronic equipment and vibration isolation When the rubber resonates and begins vibrating motion with large amplitude, it will respond to the vibrating motion of the electronic device. The elastic ring attached to the end of the bellows-shaped rubber membrane crosses both walls of the stopper groove. hit each other. When the electronic device is significantly displaced, the elastic ring will move against the wall of the stopper groove. The inside of the bellows-shaped rubber membrane is pressed by the elastic ring and packing. A gas is sealed inside and acts as a buffer fluid. The elastic ring is in the groove of the stopper. When the bellows move between both walls, a gap is created between the elastic ring and the wall. Adjusts the gas pressure difference between the inside and outside of the bellows-shaped rubber membrane, and the bellows-shaped rubber membrane has low rigidity. Therefore, there is no mutual transmission of acceleration between the electronic equipment and the support, so the electronic Damping forces occur when the equipment is displaced significantly, which affects the vibration amplitude, velocity, and acceleration of the electronic equipment. Reduce speed. In other words, it prevents the resonance movement of electronic equipment and anti-vibration rubber, and provides support. It insulates vibrations and shocks that are transmitted to electronic equipment.

[0008]

【Example】

Example 1. FIG. 1 shows an embodiment of this invention, and 1 to 5 are the conventional guided missiles described above. This is exactly the same as the vibration isolation suspension system for electronic equipment for cavities. 6 is electronic device 1 and support A bellow is located between the screws 4 and 4 with one end fixed to the electronic device 1 with the screw 3 as the central axis. The bellows-shaped rubber membrane 7 is the end of the bellows-shaped rubber membrane 6 that is not fixed to the electronic device 1. An elastic ring 8 attached to the elastic ring 8 is a strip having a groove wider than the elastic ring 7. The topper is positioned so that the elastic ring 7 is in the groove and between it and the support 4. It is attached to the support 4 with the packing 9 in between using machine screws 10.

[0009] In the anti-vibration suspension system for electronic equipment for guided flying vehicles configured as described above, Vibrations containing frequency components close to the natural frequency of the system consisting of the electronic device 1 and the anti-vibration rubber 2 Shock input is applied from the housing 5 through the support 4 to the electronic device 1 and the anti-vibration rubber. When the electronic device 1 starts to generate resonance motion, the bellows shape responds to the vibrational motion of the electronic device 1. Elastic rings 7 attached to the ends of the rubber membrane 6 are alternately attached to both walls of the groove of the stopper 8. It's true. When the displacement of the electronic device 1 becomes large, the elastic ring 7 moves against the wall of the groove of the stopper 8. The gas inside the bellows-shaped rubber membrane 6 that is pressed against the surface is caused by the elastic ring 7 and the packing. 9 to provide a damping force to dampen movement. Elastic ring 7 is a stopper When the elastic ring 7 and the stopper 8 move between both wall surfaces in the groove 8, the elastic ring 7 and the wall surface of the groove of the stopper 8 A gap is created between the bellows-shaped rubber membrane 6 to adjust the gas pressure difference between the inside and outside of the bellows-shaped rubber membrane 6, and Since the bellows-shaped rubber membrane 6 has low rigidity, it is difficult to connect the electronic device 1 from the support 4 to the stopper 8. No acceleration is transmitted through the In other words, due to the displacement of the electronic device 1, the tongue This is generated when the gas sealed in the inner space of the rubber membrane 6 acts as a buffer fluid. Due to the damping force, the amplitude, velocity, and acceleration of the vibratory motion that started producing the resonant condition are suddenly reduced. The electronic device 1 may be exposed to vibrations of large amplitude, velocity, and acceleration. The housing 5 receives vibrations with high power levels over a wide frequency band. It is possible to insulate vibrations and shocks transmitted to the electronic device 1 under such an environment.

0010

[Effect of the idea]

As explained above, this idea is based on a bellows-shaped rubber membrane with the screw as the central axis. between the electronic device and the support with one end fixed to the electronic device and the other end Attach an elastic ring to the part. And the stock has a groove wider than the elastic ring. between the stopper and the support so that the elastic ring is in the groove of the stopper. The electronic equipment is It effectively suppresses the resonance motion of the resonant rubber and isolates vibrations and shocks transmitted to electronic equipment. , environmental conditions subject to high power level vibrations over a wide frequency band. Sufficient vibration isolation to mount electronic equipment that is susceptible to vibration and shock inside the guided spacecraft. This has the effect of improving performance.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a first embodiment of this invention.

FIG. 2 shows a conventional anti-vibration suspension system for electronic equipment for guided flying vehicles.

[Explanation of symbols]

1 Electronic equipment 2 Anti-vibration rubber 3 screw 4 Support 5 body 6 Bellows-shaped rubber membrane 7 Elastic ring 8 Stopper 9 Packing 10 Machine screw

Claims (1)

[Scope of utility model registration request] [Claim 1] Anti-vibration rubber attached via a screw to electronic equipment mounted inside the guided spacecraft that requires isolation from external vibrations and shocks, and fixed to the housing of the guided spacecraft. a support to which the vibration isolating rubber is fixed in-plane; a bellows-shaped rubber film fixed to the electronic device between the electronic device and the support with the screw as a central axis; An elastic ring is attached to the end of the side that is not covered, and a groove is wider than the above elastic ring, and the elastic ring is positioned so that it is in the groove, and the packing is sandwiched between it and the above support. A vibration-proof suspension system for electronic equipment for guided flying vehicles, characterized by comprising a stopper attached to a support with a machine screw.