CN102927196A - Extrusion oil film damper running synchronously with propulsion shaft system - Google Patents
Extrusion oil film damper running synchronously with propulsion shaft system Download PDFInfo
- Publication number
- CN102927196A CN102927196A CN2012104373469A CN201210437346A CN102927196A CN 102927196 A CN102927196 A CN 102927196A CN 2012104373469 A CN2012104373469 A CN 2012104373469A CN 201210437346 A CN201210437346 A CN 201210437346A CN 102927196 A CN102927196 A CN 102927196A
- Authority
- CN
- China
- Prior art keywords
- damping
- damper
- outer shroud
- ring
- axial
- 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.)
- Granted
Links
- 238000001125 extrusion Methods 0.000 title abstract 2
- 238000013016 damping Methods 0.000 claims abstract description 98
- 230000001360 synchronised effect Effects 0.000 claims description 16
- 239000000314 lubricant Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 16
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The invention provides an extrusion oil film damper running synchronously with a propulsion shaft system. The damper comprises a damper inner ring and a damper outer ring. The damper inner ring is in interference fit with a shaft. The damper outer ring is of an annular structure and is provided with a plurality of axial through holes evenly distributed along the circumferential direction. The damping outer ring is coaxially sleeved on the outside of the damper inner ring, a bolt is inserted in each axial through hole, the bolts enable the damper outer ring and the damper inner ring to be connected, and the bolts are not completely contacted with the inner wall faces of the axial through holes. A sealing space is formed between the outer wall face of the damper inner ring and the inner wall face of the damper outer ring through an annular sealing ring, and a lubricating oil film is injected in the sealing space. The damper utilizes the sealing ring to package the oil film between the damper outer ring and the damper inner ring, does not require an extra oil path, can be directly installed on the propulsion shaft system without installing a support seat on the damper outer ring, and reduces size and weight. When the shaft vibrates, radial relative vibration happens between the damper outer ring and the damper inner ring, vibration energy is absorbed by the lubricating oil film, and shaft system vibration is reduced.
Description
Technical field
The present invention relates to the Propulsion Systems antivibration area, be specially a kind of and the synchronous operated squeeze film damper of Propulsion Systems.
Background technique
Propulsion Systems is owing to larger transverse vibration can appear in the impact of the factors such as dynamic unbalance, installation misalign, and the reduction shafting vibration can improve the stability of equipment operation, reduces noise of equipment.The squeeze film damper that utilization is installed outside bearing, the energy of the shock absorption shafting vibration by oil film, the method that reduces shafting vibration is that general axle is vibration reducing measure at present.
The conventional extruded film damper, as disclosed a kind of squeeze film damper in " rotor dynamics " chapter 4 of writing of the wicker plaiting article of looking after one's family, be vibrational energy by the sealing oil film absorption axes between outer race and bearing support, outer race and bearing support all do not rotate with axle system.This squeeze film damper be owing to can only be installed in the bearing outside, thus exist the mounting point limited, and need the problem of additional designs circulating oil path.
Summary of the invention
The technical problem that solves
Can only be installed in outside the bearing support for solving the conventional extruded film damper, and the deficiency of oil circuit need to be provided, the present invention proposes a kind of and the synchronous operated squeeze film damper of Propulsion Systems.
Technological scheme
Technological scheme of the present invention is:
The described a kind of and synchronous operated squeeze film damper of Propulsion Systems is characterized in that: comprise ring and damping outer shroud in the damping;
Ring is sleeve type in the described damping, is enclosed within on the axle for the treatment of vibration damping, and encircles and the axle interference fit in the damping; Described damping outer shroud is ring type structure, has several along circumferential equally distributed axial hole at the damping outer shroud, and the central axis of all axial holes is identical with the distance of damping outer shroud central axis; Described damping outer shroud coaxial sleeve encircles the outside in damping, be inserted with double-screw bolt in each described axial hole, and double-screw bolt is connected encircle in damping outer shroud and the damping, and double-screw bolt not exclusively contacts with the axial hole internal face, and damping is interior to encircle the axial motion that limits the damping outer shroud; Form seal space by ring-like seal ring between damping endocyclic outer wall face and the damping outer shroud internal face, be marked with the lubricant oil mould in the described seal space.
The described a kind of and synchronous operated squeeze film damper of Propulsion Systems, it is characterized in that: the axial hole of damping outer shroud is ellipse hole, and wherein oval major axis points to the central axis of damping outer shroud, and oval minor axis length equals the double-screw bolt diameter.
The described a kind of and synchronous operated squeeze film damper of Propulsion Systems, it is characterized in that: the difference of the major semi axis of the axial hole of damping outer shroud and double-screw bolt radius equals oil film thickness.
The described a kind of and synchronous operated squeeze film damper of Propulsion Systems, it is characterized in that: the axial two ends of damping outer shroud are fixed with cushion.
The described a kind of and synchronous operated squeeze film damper of Propulsion Systems, it is characterized in that: damping endocyclic outer wall face and damping outer shroud internal face gap are 0.2mm ~ 0.25mm.
The described a kind of and synchronous operated squeeze film damper of Propulsion Systems, it is characterized in that: described damping inner axle has radial protrusion to an end, and the other end is fixedly connected with ring-like baffle plate; Described double-screw bolt is stud, and stud one end is fixedly connected with the radial protrusion of damping inner axle to an end, and the stud the other end is fixedly connected with ring-like baffle plate; The cushion at the axial two ends of damping outer shroud contacts with ring-like baffle plate with the radial protrusion of damping inner axle to an end respectively.
Beneficial effect
The present invention is encapsulated in oil film in damping outer shroud and the damping between the ring by seal ring, thus need not additionally to provide oil circuit, and need to just can not be directly installed on the Propulsion Systems at damping outer shroud erection support, reduced volume and weight.When shaft vibration, radially Relative Vibration can occur in interannular in damping outer shroud and the damping, and the lubricated oily mould of the energy of vibration absorbs, thereby reduces shafting vibration.
Description of drawings
Fig. 1: structural representation of the present invention;
Fig. 2: the sectional view of damping outer shroud;
Wherein: 1. axle, 2. ring, 3. damping outer shroud, 4. stud, 5. lubricant oil mould, 6. seal ring, 7. cushion, 8. baffle plate, 9. oil hole in the damping.
Embodiment
Below in conjunction with specific embodiment the present invention is described:
Comprise ring 2 and damping outer shroud 3 in the damping with the synchronous operated squeeze film damper of Propulsion Systems in the present embodiment.
With reference to accompanying drawing 1, ring 2 is the sleeve type structure in the described damping, is enclosed within on the axle 1 for the treatment of vibration damping, and encircles and axle 1 interference fit in the damping.Described damping inner axle has radial protrusion to an end, and the other end is fixedly connected with ring-like baffle plate 8, and the radial protrusion of ring and ring-like baffle plate are used for damping outer shroud axial limiting in the damping.
With reference to accompanying drawing 2, described damping outer shroud is ring type structure, has several along circumferential equally distributed axial hole at the damping outer shroud, has opened 8 axial holes in the present embodiment.The central axis of all axial holes is identical with the distance of damping outer shroud central axis, axial hole is used for inserting double-screw bolt 4, be connected encircling in damping outer shroud and the damping, double-screw bolt not exclusively contacts with the axial hole internal face simultaneously, can make again the damping outer shroud with respect to encircling the space that has radially in the damping.
So, as shown in Figure 1, described damping outer shroud coaxial sleeve encircles the outside in damping, in each axial hole, be inserted with double-screw bolt, described double-screw bolt is stud, stud one end and damping inner axle to the radial protrusion screw thread be fixedly connected with, the stud the other end passes ring-like baffle plate, is fixedly connected with by nut.By fastening nut, thereby define the damping outer shroud with respect to the axial motion that encircles in the damping.Simultaneously, vulcanize flexible pad 7 at the axial two ends of damping outer shroud, by cushion ring in damping outer shroud and the damping is separated.
With reference to accompanying drawing 2, the axial hole of preferred damping outer shroud is ellipse hole in the present embodiment, and wherein oval major axis points to the central axis of damping outer shroud, and oval minor axis length equals the stud diameter.Like this, be convenient to the damping outer shroud with respect to encircling radial motion in the damping, and define the rotation of damping outer shroud.
Form seal space by ring-like seal ring 6 between damping endocyclic outer wall face and the damping outer shroud internal face, be marked with lubricant oil mould 5 by oil hole 9 in the described seal space.Find that by great many of experiments when damping endocyclic outer wall face and damping outer shroud internal face gap when being 0.2mm ~ 0.25mm (oil film thickness and damping endocyclic outer wall face are identical with damping outer shroud internal face gap), effectiveness in vibration suppression is better.At this moment, the difference of the major semi axis of the axial hole of damping outer shroud and stud radius equals oil film thickness.
When axle 1 vibration, radially Relative Vibration can occur in 2 on ring in damping outer shroud 3 and the damping, and the lubricated oily mould 5 of the energy of vibration absorbs, thereby reduces shafting vibration.
Claims (6)
1. one kind and the synchronous operated squeeze film damper of Propulsion Systems is characterized in that: comprise ring and damping outer shroud in the damping;
Ring is sleeve type in the described damping, is enclosed within on the axle for the treatment of vibration damping, and encircles and the axle interference fit in the damping; Described damping outer shroud is ring type structure, has several along circumferential equally distributed axial hole at the damping outer shroud, and the central axis of all axial holes is identical with the distance of damping outer shroud central axis; Described damping outer shroud coaxial sleeve encircles the outside in damping, be inserted with double-screw bolt in each described axial hole, and double-screw bolt is connected encircle in damping outer shroud and the damping, and double-screw bolt not exclusively contacts with the axial hole internal face, and damping is interior to encircle the axial motion that limits the damping outer shroud; Form seal space by ring-like seal ring between damping endocyclic outer wall face and the damping outer shroud internal face, be marked with the lubricant oil mould in the described seal space.
2. according to claim 1 described a kind of and the synchronous operated squeeze film damper of Propulsion Systems, it is characterized in that: the axial hole of damping outer shroud is ellipse hole, wherein oval major axis points to the central axis of damping outer shroud, and oval minor axis length equals the double-screw bolt diameter.
3. according to claim 2 described a kind of and the synchronous operated squeeze film damper of Propulsion Systems, it is characterized in that: the difference of the major semi axis of the axial hole of damping outer shroud and double-screw bolt radius equals oil film thickness.
4. according to claim 1 or 3 described a kind of and the synchronous operated squeeze film dampers of Propulsion Systems, it is characterized in that: the axial two ends of damping outer shroud are fixed with cushion.
5. according to claim 4 described a kind of and the synchronous operated squeeze film damper of Propulsion Systems, it is characterized in that: damping endocyclic outer wall face and damping outer shroud internal face gap are 0.2mm ~ 0.25mm.
6. according to claim 5 described a kind of and the synchronous operated squeeze film damper of Propulsion Systems, it is characterized in that: described damping inner axle has radial protrusion to an end, and the other end is fixedly connected with ring-like baffle plate; Described double-screw bolt is stud, and stud one end is fixedly connected with the radial protrusion of damping inner axle to an end, and the stud the other end is fixedly connected with ring-like baffle plate; The cushion at the axial two ends of damping outer shroud contacts with ring-like baffle plate with the radial protrusion of damping inner axle to an end respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437346.9A CN102927196B (en) | 2012-11-05 | 2012-11-05 | Extrusion oil film damper running synchronously with propulsion shaft system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437346.9A CN102927196B (en) | 2012-11-05 | 2012-11-05 | Extrusion oil film damper running synchronously with propulsion shaft system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102927196A true CN102927196A (en) | 2013-02-13 |
| CN102927196B CN102927196B (en) | 2014-11-19 |
Family
ID=47642080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210437346.9A Expired - Fee Related CN102927196B (en) | 2012-11-05 | 2012-11-05 | Extrusion oil film damper running synchronously with propulsion shaft system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927196B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799399A (en) * | 2017-05-03 | 2018-11-13 | 通用电气公司 | Squeeze-film damping device assembly |
| CN109139794A (en) * | 2018-10-23 | 2019-01-04 | 珠海格力智能装备有限公司 | Damper and Super Speed Tester with it |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139795B (en) * | 2018-10-23 | 2021-01-29 | 珠海格力智能装备有限公司 | Damper and testing machine with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4787868A (en) * | 1984-08-30 | 1988-11-29 | Sanshin Kogyo Kabushiki Kaisha | Torsional vibration damping means for marine propulsion device |
| US5058452A (en) * | 1990-05-08 | 1991-10-22 | University Of South Florida | Hybrid squeeze film damper for active control of rotors |
| US5149206A (en) * | 1991-04-17 | 1992-09-22 | General Electric Company | Hydraulic shaft damper pressure control |
| JPH08261231A (en) * | 1995-03-20 | 1996-10-08 | Ishikawajima Harima Heavy Ind Co Ltd | Squeezed film dumper bearing |
| CN1176354A (en) * | 1996-09-07 | 1998-03-18 | Itw－阿特克有限公司 | Rotation damper |
| CN1367326A (en) * | 2001-01-26 | 2002-09-04 | 株式会社尼富考 | Rotary damper and auxiliary clamping device |
-
2012
- 2012-11-05 CN CN201210437346.9A patent/CN102927196B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4787868A (en) * | 1984-08-30 | 1988-11-29 | Sanshin Kogyo Kabushiki Kaisha | Torsional vibration damping means for marine propulsion device |
| US5058452A (en) * | 1990-05-08 | 1991-10-22 | University Of South Florida | Hybrid squeeze film damper for active control of rotors |
| US5149206A (en) * | 1991-04-17 | 1992-09-22 | General Electric Company | Hydraulic shaft damper pressure control |
| JPH08261231A (en) * | 1995-03-20 | 1996-10-08 | Ishikawajima Harima Heavy Ind Co Ltd | Squeezed film dumper bearing |
| CN1176354A (en) * | 1996-09-07 | 1998-03-18 | Itw－阿特克有限公司 | Rotation damper |
| CN1367326A (en) * | 2001-01-26 | 2002-09-04 | 株式会社尼富考 | Rotary damper and auxiliary clamping device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799399A (en) * | 2017-05-03 | 2018-11-13 | 通用电气公司 | Squeeze-film damping device assembly |
| US10738653B2 (en) | 2017-05-03 | 2020-08-11 | General Electric Company | Squeeze film damper assemblies |
| CN108799399B (en) * | 2017-05-03 | 2020-08-14 | 通用电气公司 | Squeeze film damper assembly |
| CN109139794A (en) * | 2018-10-23 | 2019-01-04 | 珠海格力智能装备有限公司 | Damper and Super Speed Tester with it |
| CN109139794B (en) * | 2018-10-23 | 2024-04-09 | 珠海格力智能装备有限公司 | Damper and overspeed testing machine with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102927196B (en) | 2014-11-19 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 |