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Spring-combination-type vibration isolator

A combined type, vibration isolator technology, applied in the direction of low internal friction springs, etc., to achieve the effects of difficult adjustment, easy aging, and great flexibility

Active Publication Date: 2011-05-18
南京捷诺环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]2. The overall vibration isolation effect is poor
Difficult to adjust after molding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] 1. Flat spring

[0035] The plane spring is also called the plane scroll spring, and its structure is shown in Figure 7. Its outer ring radius R 1 , R 2 R in 1 Connected to the shell, the radius of the inner ring is r 1 and r 2 r in 2Connected with locking bolt, at R 2 and r 1 In the space between, there is a spring wire formed by the Agiide spiral. Change the spring wire width δ, the number of spring wire ends n and plate thickness, and the angle α occupied by the line length L AB , can change its horizontal stiffness in a large range. Increasing the support distance between the two planar springs can improve the stability in the horizontal axis. in Figure 7a is a single head alpha AB = 360° planar spring; Figure 7b is a single head alpha AB =450°planar spring; Figure 7c is double-headed alpha AB =645° plane spring.

[0036] 2. Disc spring

[0037] The thin disc spring is shown in Figure 8, where Figure 8a are unsupported disc springs, Figure 8...

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Abstract

The invention discloses a spring-combination-type vibration isolator. One end of an inner hole of a shell is provided with an inner thread, and the other end of the inner hole is provided with the end face with a cross slot hole; an anti-rotation sleeve is arranged in the inner hole; the anti-rotation sleeve is provided with a semi-enclosed annular groove in the axial direction; the enclosed sideof the anti-rotation sleeve clings to the end face of the inner hole of the shell; an axial rigidity buffer is arranged in the annular groove; a locking bolt is in a stepped shaft-shaped structure; the small end of the locking bolt is inserted into a center hole of the anti-rotation sleeve; the big end of the locking bolt extends out the shell; the big end of locking bolt is provided with a threaded hole for installation in the axial direction; an axial-horizontal rigidity buffer is arranged on an outer circle of the big end of the locking bolt; and a regulating thread sleeve is arranged in the inner hole of the shell through threaded connection and is positioned in an outer layer of the axial-horizontal rigidity buffer for regulating the tightness thereof. The vibration isolator of the type has the advantages of small volume, light weight, adjustable triaxial rigidity and the like. A cross anti-rotation device on the back end part of the locking bolt can prevent the accompanying rotation of the vibration isolator when a screw is arranged and wound, so that the wrench space for installation is saved.

Description

technical field [0001] The invention relates to a vibration isolator used in small-scale electronic equipment carried by missiles or fighter jets, and belongs to the field of environment and reliability control of electronic equipment. Background technique [0002] Missile and fighter airborne electronic equipment has the characteristics of small size and light weight, but the vibration and shock environment in which the electronic equipment is located is very harsh, and the volume must be small, and there is not even space for installing a wrench. Therefore, the vibration isolator should not only be small in size and have excellent vibration isolation and buffer performance, but also require the connecting bolt itself to have an anti-rotation device. [0003] figure 1 It is a structural diagram of the S30-04 rubber vibration isolator used in the Su-30MKK fighter jet delivered to China by the Amur Komsomolsk Aircraft Factory in Russia in 2000. It is mainly composed of a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F3/02
Inventor 季馨季凡渝
Owner 南京捷诺环境技术有限公司
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