A mechanical molecular spring unit body device and vibration isolator

A molecular spring, unit body technology, applied in liquid shock absorbers, springs/shock absorbers, springs, etc., can solve the problems of small static deformation, low natural frequency, etc., achieve small size, reduce overall size, Wide range of effects

Active Publication Date: 2020-06-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art and at the same time improve the universality of the mechanical molecular spring, the object of the present invention is to provide a mechanical molecular spring unit body device to solve the problem of low natural frequency and small static under heavy load in the prior art. Technical bottlenecks such as deformation and incompatibility

Method used

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  • A mechanical molecular spring unit body device and vibration isolator
  • A mechanical molecular spring unit body device and vibration isolator
  • A mechanical molecular spring unit body device and vibration isolator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Mechanical molecular spring unit body device

[0039] Such as figure 1 and 2 As shown, the mechanical molecular spring unit body device includes a piston 101, a cover plate 102, a base 105, and a disc spring 106; the cover plate 102 is fixed on the base 105, and a through hole 108 is provided in the middle part of the cover plate 102; There is a blind hole 107; the disc spring 106 is located in the blind hole 107 of the base 105; the piston 101 is in sealing and sliding fit with the through hole 108 of the cover plate 102, the piston 101 is a stepped shaft, and its stepped surface fits with the lower end surface of the cover plate 102, and the piston 101 The lower end surface of 101 is in contact with disc spring 106 .

[0040] Wherein, the connection between the cover plate 102 and the base 105 is provided with 6 connection holes 109, and the base 105 is provided with 6 threaded holes 110 corresponding to the connection holes 109 one by one, and each pair of connecti...

Embodiment 2

[0045] Capsule Vibration Isolator Based on Mechanical Molecular Spring Unit Device

[0046] Such as image 3 As shown, the capsule vibration isolator based on the mechanical molecular spring unit device includes an upper cover plate 201 , a plug 202 , a rubber bladder 205 , a lower bottom plate 208 , several mechanical molecular spring unit devices 209 , and a liquid 210 . The middle part of the upper cover plate 1 is provided with a countersunk threaded through hole, and is sealed with the plug 202 through thread cooperation; the upper cover plate 201 is provided with 6 countersunk holes, and the upper flange 204 is provided with 6 threaded through holes, through the upper Screws 203 fasten the upper cover plate 201 and the upper flange 204; a rubber bag is provided between the upper cover plate 201 and the upper flange 204 for sealing; the lower base plate 208 is provided with 6 countersunk holes, and the lower flange 206 There are 6 threaded through holes, and the lower bo...

Embodiment 3

[0050] Bellows Vibration Isolator Based on Mechanical Molecular Spring Unit Device

[0051] Such as Figure 4 As shown, the bellows type vibration isolator based on the mechanical molecular spring unit device includes an upper cover plate 301, a plug 302, a bellows 303, a lower bottom plate 304, a mechanical molecular spring unit device 305, a liquid 306, and an upper cover plate 301 There is a countersunk threaded through hole in the middle, and it is sealed with the plug 302 by threading; the upper cover plate 301 is connected and sealed with the bellows 303 by welding; the lower bottom plate 304 is connected and sealed with the bellows 303 by welding; the upper cover plate 301 , the lower bottom plate 304 , and the bellows 303 form a closed cavity, and several mechanomolecular spring unit devices 305 are placed in the cavity, and the cavity is filled with liquid 306 at the same time, and the liquid 306 can be water or hydraulic oil.

[0052] The mechanomolecular spring uni...

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PUM

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Abstract

The invention discloses a mechanical molecular spring unit body device and a vibration isolator. The mechanical molecular spring unit body device comprises a cover plate, a base, a piston and a disc spring. The cover plate is fixed to the base and a through hole is formed in the middle of the cover plate; a blind hole is formed in the middle of the base; the disc spring is located in the blind hold of the base; the piston is hermetically and slidably matched with the through hole of the cover plate, the piston is a step shaft, the step face of the piston is attached to the lower end surface ofthe cover plate, and the lower end surface of the piston is in contact with the disc spring. The mechanical molecular spring unit body device disclosed by the invention is suitable for a hydraulic environment, taking a liquid as a force transfer medium and the structural shape of the unit body device, the piston and the spring as force bearing elements. The mechanical molecular spring unit body device disclosed by the invention has the characteristic of endowing high static rigidity and low dynamic rigidity to the liquid vibration isolator, and is particularly suitable for the field of low frequency heavy load vibration isolation.

Description

technical field [0001] The invention belongs to the technical field of vibration isolation, and in particular relates to a mechanical molecule spring unit device and a vibration isolator. Background technique [0002] Vibration is always one of the focal issues in the fields of aeronautics, aerospace, marine and vehicle engineering. Generally speaking, vibration will lead to structural fatigue damage, reduce the performance of instrumentation equipment, and reduce ride comfort. In the field of national defense, strong vibration will affect the survivability and combat technical performance of weapons and equipment. Passive vibration isolation technology is widely used because of its simplicity, low price, and reliability, such as metal spring isolators, metal rubber isolators, rubber isolators, wire rope isolators, air spring isolators, etc. However, the vibration isolation effect of these vibration isolators in the field of low frequency and heavy load often cannot meet p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F13/00F16F9/10
CPCF16F9/10F16F13/002
Inventor 李占勇陈前
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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