JPH0571697U - Anti-vibration mechanism for guided aircraft - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a vibration-proof mechanism that insulates high-level vibrations and strong impacts over a wide frequency band in order to equip the body of an induction vehicle with electronic devices that are sensitive to vibrations and shocks. [Structure] An electronic device 1 is attached to a vibration-proof rubber 2 fixed on the surface of a support 4 fixed to a casing 5 via a screw 3. The plug 6 in which the screw 3 is screwed is pressed against the outer surface of the electronic device 1. The first magnet 7 is fixed to the outer peripheral surface of the plug 6. Machine screw 9 on support 4
The second magnet 10 having a polarity opposite to that of the first magnet 7 is fixed to the inner peripheral surface of the flange 8 attached by means of the outer surface of the first magnet 7 with a slight clearance. A packing 11 is provided between the electronic device 1 and the plug 6, and a packing 1 is provided between the support 4 and the flange 8.
Insert 2 pieces.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vibration-proof mechanism for a guided vehicle, and more particularly, to a vibration-proof suspension device for mounting an electronic device on the body of a guided vehicle.

[0002]

[Prior Art]

 FIG. 2 is a cross-sectional view showing a conventional vibration damping mechanism for a guided vehicle. In the figure, 1 is an electronic device, 2 is an anti-vibration rubber attached to the electronic device 1 via a screw 3, 4 is a support for fixing the anti-vibration rubber 2, and 5 is a casing of a guided flying body. Support 4 is fixed.

The conventional anti-vibration mechanism for a guided flying object is constructed as described above, and since the anti-vibration rubber 2 fixed to the support 4 has the function of absorbing kinetic energy, When vibration or shock is applied to the body 5, the vibration or shock transmitted from the case 5 to the electronic device 1 through the support 4 can be reduced.

[0004]

[Problems to be solved by the device]

 In the conventional antivibration mechanism for the guided air vehicle as described above, when an input of vibration or impact including a frequency component close to the natural frequency of the spring-mass motion system composed of the electronic device 1 and the antivibration rubber 2 is received. Causes the electronic device 1 and the anti-vibration rubber 2 to resonate, and a large amplitude, velocity, and acceleration vibration exceeding the input is applied to the electronic device 1. Therefore, the guided aircraft vibrates over a wide frequency band, or the above spring-mass system. When a shock containing frequency components with high impact sensitivity is applied, it does not act as a vibration-proof suspension system for electronic devices, and it vibrates the guided flying object under environmental conditions where it receives high power level vibrations over a wide frequency band. There was a problem that the anti-vibration capability was insufficient as an anti-vibration mechanism for mounting electronic devices that are sensitive to shocks.

The present invention has been made to solve the above problems, and is to mount an electronic device that is weak against vibration and impact inside an induction flying body that receives high power level vibration over a wide frequency band. The purpose is to obtain an anti-vibration mechanism with sufficient anti-vibration ability.

[0006]

[Means for Solving the Problems]

 The anti-vibration mechanism of the guide vehicle according to the present invention attaches the anti-vibration rubber fixed to the support to the electronic device via the screw, presses the screwed screw to the outer surface of the electronic device, and Secure the first magnet to the outer peripheral surface. Also, attach a second magnet with the opposite polarity to the first magnet to the inner surface of the flange attached to the support with machine screws so that the inner surface of the second magnet is the outer surface of the first magnet. It has a small clearance and is placed in a fitting position and fixed, and packing is sandwiched between the electronic device and the plug and between the support and the flange.

[0007]

[Action]

 In this invention, when the electronic device and the anti-vibration rubber resonate due to the input of vibration or shock from the housing and start the vibration motion of large amplitude, the outer surface of the first magnet and the inner surface of the second magnet are The surfaces are attracted by the magnetic force and partially contact to exert an effect on the contact surface, so that a damping force due to frictional resistance is generated.In addition, anti-vibration rubber, support, flange, first magnet, second magnet, plug. The volume of air inside the enclosed space is limited by the minute gap between the first magnet and the second magnet inflow and outflow with the outside air. It acts as a buffering fluid against the fluctuation of and produces a damping force, which suppresses the vibration amplitude, velocity and acceleration of electronic equipment. In other words, it prevents resonance between the electronic equipment and the anti-vibration rubber, and insulates vibrations and shocks transmitted from the support to the electronic equipment.

[0008]

【Example】

 Example 1. FIG. 1 shows an embodiment of the present invention, in which 1 to 5 are completely the same as the vibration isolation mechanism of the above conventional guide flying body. 6 is a plug in which the screw 3 is screwed in and pressed against the outer surface of the electronic device 1, 7 is a first magnet fixed to the outer peripheral surface of the plug 6, 8 is a flange in which a small screw 9 is attached to the support, Numeral 10 is fixed to the inner peripheral surface of the flange 8 and is arranged in a position in which the inner surface and the outer surface of the first magnet 7 have a slight clearance and are arranged in a fitting position. The second magnet 11 has a packing sandwiched between the electronic device 1 and the plug 6, and 12 a packing sandwiched between the support 4 and the flange 8.

In the vibration-proof mechanism for the guided flying object configured as described above, the input of vibration or shock including the frequency component close to the natural frequency of the system including the electronic device 1 and the vibration-proof rubber 2 is input. Even if the electronic device 1 and the anti-vibration rubber 2 start to generate resonance motion by being applied from 5 through the support 4, the outer surface of the first magnet 7 and the inner surface of the second magnet 10 are attracted to each other by the magnetic force. A damping force is generated due to frictional resistance because the parts contact each other and have an effect on the contact surface. In addition, the gas in the internal space surrounded by the anti-vibration rubber 2, the support 4, the flange 8, the first magnet 7, the second magnet 10, and the plug 6 has an inflow / outflow area with the outside air that is equal to the first magnet 7. Since it is limited to a minute gap between the second magnet 10 and the second magnet 10, the damping force also works by acting as a buffer fluid against the change in the volume accompanying the oscillating movement of the electronic device 1. The amplitude, speed and acceleration of the motion are rapidly attenuated, the electronic device 1 is not exposed to the vibration of large amplitude, speed and acceleration, and the casing 5 is subjected to the vibration of high power level over a wide frequency band. Vibration and impact transmitted to the electronic device 1 under the environment can be insulated.

[0010]

[Effect of the device]

 As described above, this invention presses the screwed screw plug against the outer surface of the electronic device, fixes the first magnet to the outer peripheral surface of the plug, and attaches the first magnet to the inner peripheral surface of the flange attached to the support. The second magnet, whose polarity is opposite to that of the first magnet, is placed and fixed in a position where the inner surface of the second magnet and the outer surface of the first magnet have a slight gap and fits together. The structure in which packing is sandwiched between the device and the plug and between the support and the flange effectively suppresses the resonance motion of the electronic device and the anti-vibration rubber, and insulates vibrations and shocks transmitted to the electronic device, thus widening the frequency range. It is said that it is possible to obtain sufficient anti-vibration performance to mount electronic equipment that is sensitive to vibration and impact inside the guided air vehicle under the environmental conditions where it receives high power level vibrations over the entire band. There is a result.

[Brief description of drawings]

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

[FIG. 2] A conventional antivibration mechanism for a guided vehicle.

[Explanation of symbols]

 1 electronic equipment 2 anti-vibration rubber 3 screw 4 support 5 housing 6 plug 7 first magnet 8 flange 9 machine screw 10 second magnet 11 packing 12 packing

Claims (1)

[Scope of utility model registration request] 1. An anti-vibration rubber which is attached to an electronic device mounted inside an induction flying object through a screw, and a support which is fixed to the casing of the induction flying object and has the anti-vibration rubber fixed in-plane. , A plug screwed into the outer surface of the electronic device by screwing the screw, a first magnet fixed to the outer peripheral surface of the plug, a flange attached to the support by tightening a small screw, an inner circumference of the flange A second magnet, which is fixed to the surface and is arranged at a position where the inner surface fits the outer surface of the first magnet with a slight clearance, and has a polarity opposite to that of the first magnet; An anti-vibration mechanism for a guided vehicle characterized by having a packing sandwiched between a plug and a plug and between a support and a flange.