CN105805051A - Squeeze oil film damper - Google Patents
Squeeze oil film damper Download PDFInfo
- Publication number
- CN105805051A CN105805051A CN201410846605.2A CN201410846605A CN105805051A CN 105805051 A CN105805051 A CN 105805051A CN 201410846605 A CN201410846605 A CN 201410846605A CN 105805051 A CN105805051 A CN 105805051A
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- CN
- China
- Prior art keywords
- damper
- antivibrator
- split
- film damper
- oil film
- 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.)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Disclosed is a squeeze oil film damper. By means of the squeeze oil film damper, fluid exciting force can be weakened, the rotation of a rotor is stable, and the service life of a compressor is prolonged. The squeeze oil film damper comprises two semicircular damper split bodies which are in butt joint; each butt joint face is provided with a locating pin and a bolt; notches which are distributed in a radially symmetric mode are formed in the inner walls of the two damper split bodies correspondingly; the two notches communicate with each other through eccentric grooves formed in the inner walls of the damper split bodies; oil through holes are formed between the rear end faces of the damper split bodies and the notches; and counter bored holes which are circumferentially and uniformly distributed are formed in the front end face of the butt-jointed damper split bodies.
Description
Technical field
The present invention relates to a kind of squeeze film damper.
Background technology
Centrifugal compressor is the important component part of oil, chemical industry, along with high pressure Large centrifugal compressors high load capacity, high rotating speed, low weight development trend, the fluid exciting force that cause in the oil film of bearing, shaft end seal, labyrinth sealing and rotating shaft internal damping etc. produces strengthens therewith, this fluid exciting force can cause rotor to rotate instability, also shortens the service life of compressor.
Summary of the invention
The present invention is the technical problem in order to solve above-mentioned existence, it is provided that one can weaken fluid exciting force, rotor slow-roll stabilization, extends the squeeze film damper in compressor service life.
The technical solution of the present invention is:
A kind of squeeze film damper, it is characterized in that and includes two semiorbicular antivibrator splits, said two antivibrator split is docked, each interface is respectively equipped with an alignment pin and a bolt, it is respectively equipped with the gap that a radial symmetric is arranged at said two antivibrator split inwall, the eccentric groove passing through to be opened in antivibrator split inwall between two gap communicates, between described antivibrator split rear end face and gap, it is provided with an oil through, docking rear damper split front end face is provided with the counterbore that circumference is evenly arranged.
The invention has the beneficial effects as follows:
Casing is preset with the oil through corresponding with squeeze film damper, first pass through bolt and this squeeze film damper is fixed on casing, lubricating oil in casing on casing preset oil through and squeeze film damper on oil through enter gap, simultaneously enter in eccentric groove, thus forming a circle oil film between rotor and squeeze film damper, owing to the viscosity of lubricating oil absorbs fluid exciting force, thus improving the stability that rotor rotates, extend the service life of compressor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: 1-antivibrator split is constituted, 2-alignment pin, 3-bolt, 101-gap, 102-eccentric groove, 103-oil through, 104-counterbore.
Detailed description of the invention
As shown in the figure, a kind of squeeze film damper, including two semiorbicular antivibrator splits 1, two antivibrator splits 1 are docked, each interface is respectively equipped with an alignment pin 2 and bolt 3, it is respectively equipped with the gap 101 that a radial symmetric is arranged at said two antivibrator split 1 inwall, the eccentric groove 102 passing through to be opened in antivibrator split 1 inwall between two gap 101 communicates, an oil through 103 it is provided with between each antivibrator split 1 rear end face and gap thereon 101, antivibrator split 1 front end face after docking is provided with the counterbore 104 that circumference is evenly arranged.
During operation, first on casing, preset the screwed hole corresponding with this squeeze film damper and oil through, finally by the bolt in counterbore 104, squeeze film damper is arranged on casing, lubricating oil in casing can enter gap 101 by oil through 103, and enter eccentric groove 102 and form oil film.
Claims (1)
1. a squeeze film damper, it is characterized in that: include two semiorbicular antivibrator splits, said two antivibrator split is docked, each interface is respectively equipped with an alignment pin and a bolt, it is respectively equipped with the gap that a radial symmetric is arranged at said two antivibrator split inwall, the eccentric groove passing through to be opened in antivibrator split inwall between two gap communicates, between described antivibrator split rear end face and gap, it is provided with an oil through, docking rear damper split front end face is provided with the counterbore that circumference is evenly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846605.2A CN105805051A (en) | 2014-12-31 | 2014-12-31 | Squeeze oil film damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846605.2A CN105805051A (en) | 2014-12-31 | 2014-12-31 | Squeeze oil film damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105805051A true CN105805051A (en) | 2016-07-27 |
Family
ID=56420358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846605.2A Pending CN105805051A (en) | 2014-12-31 | 2014-12-31 | Squeeze oil film damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105805051A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799362A (en) * | 2018-06-21 | 2018-11-13 | 中国科学院国家空间科学中心 | A kind of small and light machine formula centrifugation speed-limiting device |
| CN110067779A (en) * | 2019-03-11 | 2019-07-30 | 江苏金通灵流体机械科技股份有限公司 | A kind of squeeze film damper for low-temperature-rise centrifugation Pistonless compressor |
| CN111692257A (en) * | 2020-06-17 | 2020-09-22 | 华中科技大学 | Extrusion film type self-tuning vibration absorber |
| CN112096783A (en) * | 2020-09-18 | 2020-12-18 | 沈阳航空航天大学 | Novel squeeze film damper with outer ring structure |
| CN114812353A (en) * | 2022-03-16 | 2022-07-29 | 西北工业大学 | Measure subassembly of squeeze film damper eccentricity |
-
2014
- 2014-12-31 CN CN201410846605.2A patent/CN105805051A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799362A (en) * | 2018-06-21 | 2018-11-13 | 中国科学院国家空间科学中心 | A kind of small and light machine formula centrifugation speed-limiting device |
| CN110067779A (en) * | 2019-03-11 | 2019-07-30 | 江苏金通灵流体机械科技股份有限公司 | A kind of squeeze film damper for low-temperature-rise centrifugation Pistonless compressor |
| WO2020181762A1 (en) * | 2019-03-11 | 2020-09-17 | 金通灵科技集团股份有限公司 | Squeeze film damper for centrifugal vapor compressor with low temperature rise |
| CN111692257A (en) * | 2020-06-17 | 2020-09-22 | 华中科技大学 | Extrusion film type self-tuning vibration absorber |
| CN111692257B (en) * | 2020-06-17 | 2021-10-08 | 华中科技大学 | Extrusion film type self-tuning vibration absorber |
| CN112096783A (en) * | 2020-09-18 | 2020-12-18 | 沈阳航空航天大学 | Novel squeeze film damper with outer ring structure |
| CN114812353A (en) * | 2022-03-16 | 2022-07-29 | 西北工业大学 | Measure subassembly of squeeze film damper eccentricity |
| CN114812353B (en) * | 2022-03-16 | 2024-01-30 | 西北工业大学 | Component for measuring eccentric amount of extrusion oil film damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |
|
| WD01 | Invention patent application deemed withdrawn after publication |