CN105422719A

CN105422719A - Vibration isolation daub buffer

Info

Publication number: CN105422719A
Application number: CN201510947665.8A
Authority: CN
Inventors: 杨磊
Original assignee: ANHUI ZHUCHENG INFORMATION TECHNOLOGY Co Ltd
Current assignee: ANHUI ZHUCHENG INFORMATION TECHNOLOGY Co Ltd
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2016-03-23

Abstract

The invention discloses a vibration isolation daub buffer, comprising a piston, a front end cover, a cylinder, a rear end cover and a base, wherein the piston runs through the front end cover, the rear end cover and the base; a piston head is formed in the cylinder, silicone oil is contained in the cylinder, the silicon oil is filled with a globule with a two-layer structure, the inner layer of the globule is prepared from polypropylene foamed plastic, and the outer layer of the globule is prepared from macromolecule silicone rubber material. According to the invention, the globule is added to a silicone oil medium, so that buffer presents the characteristics of being small in damping in small displacement and being large in damping in large displacement, thus well ensuring that the vibration isolation efficiency of the vibration isolation system is not affected due to overlarge damping in vibration working condition.

Description

A kind of vibration isolation daub buffer

Technical field

The present invention relates to thump, little stroke damping buffering technology, particularly relate to a kind of vibration isolation daub buffer.

Background technique

Buffer technology all has significant application value at many industrial fields such as communications and transportation, Aero-Space, mine, metallurgy, for proterctive equipment safety, reduces and impacts, and life-saving, minimizing noise have indispensable effect.It is exactly absorption, the transfer of energy that buffer technology is searched to the bottom, be developed so far and generally have two types, one is energy-storage type buffer, as the elastomer of rubber, spring and other kind, kinetic transformation is that resiliently deformable energy is stored by this type, after process to be buffered, energy need be discharged again, this is just applied with certain restoring force to load, needs the operating mode of precise positioning unfavorable for some.Another kind is energy consumption type buffer, and representative is hydraulic bjuffer, and principle makes it by throttle orifice by squeezed fluid force feed, due to the existence of flow resistance, makes kinetic transformation be that thermal energy consumption is fallen, thus reaches the object of energy consumption buffering.

The hydraulic oil that traditional energy consumption type buffer uses be mostly silicone oil, and the compressibility of this silicone oil and the variation relation of pressure are nonlinear, and pressure is larger, compressibility increase faster, but pressure lower than 250MPa time, compressibility is not only low, and changes very little.In the to-and-fro motion of buffer inner carrier, even if the compression performance of silicone oil may have an impact to the energy-dissipating property of buffer, but because of its motion produce hydraulic pressure very little, can ignore.The pressure of the internal fluid generation of buffer is maximum on the other hand is also no more than tens MPas, and therefore in impact process, the compressibility of silicone oil is also very little, also can ignore.

Summary of the invention

The object of the invention is to overcome above shortcomings in prior art, a kind of vibration isolation daub buffer is provided, by improving the compression performance of silicone oil, improving the energy-dissipating property of buffer.

For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:

A kind of vibration isolation daub buffer, comprise piston, front cover, cylinder body, rear end cover and base, described piston runs through front cover, rear end cover and base, and be positioned at cylinder body and be formed with piston head, silicone oil is equiped with in described cylinder body, described filled with silicone oil has the bead of double-layer structure, and the internal layer of described bead is made up of polypropylene foam, and skin is made up of macromolecule silicone rubber material.

Further, the external diameter of described bead is 200 ~ 700nm.

The invention has the beneficial effects as follows:

The present invention, by adding bead in silicone oil medium, is the characteristic of large damping when making it be little damping, Large travel range when reaching thin tail sheep, ensures the vibration isolation efficiency that can not affect vibrating isolation system under vibration operating mode because damping is excessive well.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structural representation of bead in the present invention;

In figure: 1-piston, 2-front cover, 3-cylinder body, 4-silicone oil, 5-bead, 6-rear end cover, 7-base, 8-macromolecule silicone rubber material, 9-polypropylene foam.

Embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.

As shown in Figure 1, 2, a kind of vibration isolation daub buffer, comprise piston 1, front cover 2, cylinder body 3), rear end cover 6 and base 7, described piston 1 runs through front cover 2, rear end cover 6 and base 7, and be positioned at cylinder body 3 and be formed with piston head, be equiped with silicone oil 4 in described cylinder body 3, described silicone oil 4 is filled with the bead 5 of double-layer structure, the internal layer of described bead 5 is made up of polypropylene foam 9, and skin is made up of macromolecule silicone rubber material 8.

Further, the external diameter of described bead 5 is 200 ~ 700nm.

The working principle of the present embodiment is:

The skin of bead 5 selects the addition type room temperature curing silicone rubber preparation with stronger anti-shear ability, and its main component is the linear polysiloxanes of high molecular weight.This silicone rubber is the good paste of mobility before sulfuration, and add the mixing of supporting vulcanzing agent during use in sizing material after, at room temperature i.e. autovulcanization, intensity is high, elongation percentage is large, solvent resistance is good, has ensured the intensity of bead 5 and has recovered the ability of distortion.

By adding bead 5 in silicone oil 4 medium, being the characteristic of large damping when making it be little damping, Large travel range when reaching thin tail sheep, ensureing the vibration isolation efficiency that can not affect vibrating isolation system under vibration operating mode because damping is excessive well.

Claims

1. a vibration isolation daub buffer, comprise piston (1), front cover (2), cylinder body (3), rear end cover (6) and base (7), described piston (1) runs through front cover (2), rear end cover (6) and base (7), and be positioned at cylinder body (3) and be formed with piston head, silicone oil (4) is equiped with in described cylinder body (3), it is characterized in that: described silicone oil (4) is filled with the bead (5) of double-layer structure, the internal layer of described bead (5) is made up of polypropylene foam (9), and skin is made up of macromolecule silicone rubber material (8).

2. a kind of vibration isolation daub buffer according to claim 1, is characterized in that: the external diameter of described bead (5) is 200 ~ 700nm.