CN2144540Y - Damping noiseless damper - Google Patents
Damping noiseless damper Download PDFInfo
- Publication number
- CN2144540Y CN2144540Y CN 92243080 CN92243080U CN2144540Y CN 2144540 Y CN2144540 Y CN 2144540Y CN 92243080 CN92243080 CN 92243080 CN 92243080 U CN92243080 U CN 92243080U CN 2144540 Y CN2144540 Y CN 2144540Y
- Authority
- CN
- China
- Prior art keywords
- damper
- centrifuge
- vibration
- noise
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a shock absorbing and silencing damper which is mainly used for controlling vibration and noise in the manufacture of a centrifuge. The utility model can effectively reduce the vibration of the whole machine and reduce the noise of the centrifuge. In the utility model, a circular ring damper made of rubber material is added on the lower end of a driving host machine of the centrifuge, and the rigidity of a rotary system is improved, so the vibration of the whole machine is reduced, and the noise of the centrifuge can be reduced.
Description
Vibrotechnique field under the utility model is mainly used in the noise and vibration control in the centrifuge manufacturing.
In the structural design that present centrifuge is made, to causing the rotary system of centrifuge vibration and noise, normally in the flange plate lower end of drive motor with several upright post type damper top mounts (be generally and select jz-4 or jz-8 type vibration damper for use) reaching the purpose in separating vibration source, isolation method divides two kinds of suspension type and supporteds.The vibration reducing measure that this kind is traditional, though can play certain damping effect, because of having ignored the key position that causes vibration, so effectiveness in vibration suppression is undesirable.
The excitation force that causes the centrifuge vibration is that the centrifugation rotor unbalance causes, and therefore, exciting point is not on motor at the barycenter of centrifugation rotor, and the damper top mount point of traditional vibration damping mode is away from the exciting point, so effectiveness in vibration suppression is bad.
The purpose of this utility model is to consider that the vibration of elimination centrifuge reduces the noise of centrifuge from whole system.Concrete grammar is to increase a damper (as shown in drawings) in the lower end of centrifuge drive motor, and damper is a ring structure, and its material is rubber or other.Its Φ
1, Φ
2And Φ
3Size set arbitrarily by selected motor and shelf inner diameter.Damper can increase the rigidity of rotary system effectively, thereby has improved the fundamental frequency f of system, and because of vibration ratio u=f/fn, when f increased, then u increased, and exciting transmissibility p=1/|1-u
2|, u＞
So when u increased, exciting transmissibility p reduced.
Vibration isolation efficiency η=(1-p) * 100%, so when p reduced, vibration isolation efficiency η increased, the vibration isolating effect of expression system increases.
The sound partiting system s=20Log 1/ (ρ) of system, when transmissibility p reduced, the acoustical reduction coefficient s of system increased, and the sound attenuation degree of expression structural system increases, so can reduce system noise effectively.
Accompanying drawing is the structural drawing (Fig. 1) and the scheme of installation (Fig. 2) of vibration damping de-noising sound damper.
The installation diagram diagram:
1. 2. 3. Jz-4 vibration damper of motor flange dish of separation rotor
4. 5. 6. damper of support of motor
The utility model concrete structure is provided by following examples and accompanying drawing.
On the micro-refrigerated centrifuge of LGR16-w type high speed, use above-mentioned damper Φ
1=90mm, Φ
2=94mm, Φ
3=130mm, Φ
1～Φ
2Axial thickness is 10mm, Φ
2～Φ
3Axial thickness is 5mm, and the maximum speed of centrifuge is 16000 rev/mins, and when not adding damper 80 decibels of 32 milliliters of maximum capacities, one centimetre of maximum unbalancing value 25 gram, complete machine noise drop to 64 decibels.Four prototype experiments, complete machine noise on average reduce by 15 decibels.Experimental results show that vibration damping de-noising sound damper can reduce the vibration of complete machine effectively, reduce the noise of centrifuge.
Claims (3)
1, a kind of vibration damping de-noising sound damper that is used for the centrifuge manufacturing is characterized in that this device is a circular ring, and the interior circular diameter of its ring and outside diameter are set arbitrarily by the size of selected motor and centrifuge shelf inner diameter.
2, damper as claimed in claim 1 is characterized in that damper is fixed on the bottom of centrifuge drive motor.
3, damper as claimed in claim 1 is characterized in that its material is rubber, styrene butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92243080 CN2144540Y (en) | 1992-12-09 | 1992-12-09 | Damping noiseless damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92243080 CN2144540Y (en) | 1992-12-09 | 1992-12-09 | Damping noiseless damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2144540Y true CN2144540Y (en) | 1993-10-27 |
Family
ID=33782741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92243080 Expired - Fee Related CN2144540Y (en) | 1992-12-09 | 1992-12-09 | Damping noiseless damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2144540Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100333837C (en) * | 2003-10-09 | 2007-08-29 | 日立工机株式会社 | Centrifuge |
| CN101031957B (en) * | 2005-07-27 | 2010-05-19 | 松下电器产业株式会社 | Active vibration/noise controller |
| CN103016586A (en) * | 2012-01-18 | 2013-04-03 | 佛山市顺德区新生源电器有限公司 | Vibration absorbing sleeve and pet blower with same |
| CN105229334A (en) * | 2013-03-28 | 2016-01-06 | 科磊股份有限公司 | For the mixing vibration isolated system of measuring table |
| CN114838083A (en) * | 2022-07-04 | 2022-08-02 | 中建安装集团有限公司 | Distributed variable damping composite vibration attenuation system and vibration attenuation method based on LoRa communication |
-
1992
- 1992-12-09 CN CN 92243080 patent/CN2144540Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100333837C (en) * | 2003-10-09 | 2007-08-29 | 日立工机株式会社 | Centrifuge |
| CN101031957B (en) * | 2005-07-27 | 2010-05-19 | 松下电器产业株式会社 | Active vibration/noise controller |
| CN103016586A (en) * | 2012-01-18 | 2013-04-03 | 佛山市顺德区新生源电器有限公司 | Vibration absorbing sleeve and pet blower with same |
| CN103016586B (en) * | 2012-01-18 | 2015-07-08 | 佛山市顺德区新生源电器有限公司 | Vibration absorbing sleeve and pet blower with same |
| CN105229334A (en) * | 2013-03-28 | 2016-01-06 | 科磊股份有限公司 | For the mixing vibration isolated system of measuring table |
| CN114838083A (en) * | 2022-07-04 | 2022-08-02 | 中建安装集团有限公司 | Distributed variable damping composite vibration attenuation system and vibration attenuation method based on LoRa communication |
| CN114838083B (en) * | 2022-07-04 | 2022-11-15 | 中建安装集团有限公司 | Distributed variable damping composite vibration attenuation system and vibration attenuation method based on LoRa communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |