CN207795876U - A kind of elastic shaft bearing - Google Patents
A kind of elastic shaft bearing Download PDFInfo
- Publication number
- CN207795876U CN207795876U CN201721204089.9U CN201721204089U CN207795876U CN 207795876 U CN207795876 U CN 207795876U CN 201721204089 U CN201721204089 U CN 201721204089U CN 207795876 U CN207795876 U CN 207795876U
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- Prior art keywords
- bearing
- former
- tangential
- housing component
- support
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- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 9
- 230000001629 suppression Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007723 transport mechanism Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Support Of The Bearing (AREA)
Abstract
The utility model discloses a kind of resilient bearing holder structure suitable for universal machine field, the elastic shaft bearing includes：Housing component tangentially supports former, bearing saddle bore；The housing component is mechanical hull outer support part；The bearing saddle bore is mechanical hull inner support member；The tangential support former is the connection inside and outside support element of mechanical hull and the former tangent with bearing saddle bore；The tangential former cross sectional shape includes but not limited to rectangle, ellipse, circle, square, triangle etc.；The quantity of the tangential former can be determined according to using effect, wherein when bearing uses rolling bearing, former quantity should be relatively prime with bearing ball quantity.The utility model is simple in structure, and effectiveness in vibration suppression is apparent, and bearing block rigidity can be adjusted flexibly to adapt to rotor element structure design demand.
Description
Technical field
The utility model belongs to rotating machinery antivibration area, is related to a kind of resilient bearing holder structure, specifically, being
Refer to a kind of resilient bearing holder structure suitable for the vibration damping of mechanical support containing rotor element field.
Background technology
The vibration characteristics of rotary machine rotor component is that failure rate is higher in emphasis and engineering practice in structure design
One of factor.The quality of vibration characteristics not only affects the critical speed nargin of rotor, also determine complete machine impact resistance and
Stability.Therefore, wish that rotor supporting structure has good damping behavior in engineering design.The method used at present includes：
Resilient support, damping vibration attenuation, electromagnetism vibration suppression, reduction amount of unbalance etc..It generally requires to increase special vibration-proof structure, design can be increased
Difficulty improves design, construction cost.
Bearing block bullet can be improved under the premise of not increasing specialized structure in resilient bearing holder structure described in the utility model
Property and damping, rigidity can be adjusted in wide range, the scope of application is broad, can be that the design of rotary machine rotor vibration-proof structure provide
With reference to.
Utility model content
In view of the drawbacks of the prior art and insufficient, the utility model is intended to provide a kind of rotating machinery elastic shaft bearing knot
Structure reduces design, construction cost, by increasing supporting structural elastic, makes full use of supporting member to simplify vibration-proof structure design
Structural damping, material damping enhance the effectiveness in vibration suppression of original supporting member, expand support stiffness adjustable extent.
The utility model is by the technical solution that realization its technical purpose is taken：
A kind of elastic shaft bearing, including housing component, tangentially support former, bearing block inner wall, which is characterized in that
The housing component is mechanical hull outer support part；
The bearing block inner wall is mechanical hull inner support member, and the cavity that the bearing block inner wall surrounds constitutes bearing block
Hole；
Circumferentially multiple tangential support formers between the housing component and bearing block inner wall, the tangential support
Former is tangent with the bearing saddle bore and is connect in on-right angle with housing component tangent line.
Preferably, the cross sectional shape of the tangential support former is rectangle, ellipse, circle, square or triangle.
Preferably, the quantity of the tangential former can be determined according to indexs such as critical rotor speed nargin, stabilities of vibration.
Preferably, when bearing uses rolling bearing, former quantity should be relatively prime with bearing ball quantity, to prevent in high frequency
Duan Fasheng double frequency resonances.
Preferably, the junction between the tangential support former and housing component and the connection between bearing block inner wall
Place is round-corner transition.
Further, the size of knuckle is determined according to the consumption of vibrational energy, the rigidity of structure.
Compared with the existing technology, the notable of the rotating machinery resilient bearing holder structure of the utility model has technical effect that：
Former arranged tangential is supported, vibration direction of transfer is vertical with part former, while forming an angle with remaining former, perpendicular folder
The former stress at angle is equivalent to cantilever beam free end by vertical force, remaining former stress is equivalent to cantilever beam free end
By non-perpendicular power.When vibrating direction of transfer and consistent or parallel former arranged direction, individual formers are had by pulling force or pressure.
Under plumbness, the structural damping of former and the material damping of material itself can be utilized, can be a large amount of
Consume rotor oscillation energy so that less residual vibration is transmitted in body.The rotating machinery elastic shaft of the utility model
Holder structure is simple in structure, reduces design cost, effectiveness in vibration suppression is apparent, and stiffness tuning is flexible.
Description of the drawings
Fig. 1 is the structure chart of the elastic shaft bearing of the utility model；
Fig. 2 is the Section A-A revolved sectional view of Fig. 1；
Fig. 3 is the structure top view of existing whole radial plate type elastic shaft bearing；
Fig. 4 is the structure Section A-A sectional view of existing whole radial plate type elastic shaft bearing；
Fig. 5 is the structure top view of existing radial webs formula elastic shaft bearing；
Fig. 6 is the structure Section A-A sectional view of existing radial webs formula elastic shaft bearing；
Fig. 7 is existing radial webs vibration transfer path schematic diagram；
Fig. 8 is the tangential former vibration transfer path schematic diagram of the utility model.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, develop simultaneously implementation referring to the drawings
The utility model is further described in example.
As shown in Figure 1, the elastic shaft bearing of the utility model, including housing component 1, bearing block inner wall 5, and be arranged in shell
Multiple tangential support formers 3 between body part 1 and bearing block inner wall 5；Housing component 1 is mechanical hull outer support part；In bearing block
Wall 5 is mechanical hull inner support member, and the cavity that bearing block inner wall 5 surrounds constitutes bearing saddle bore 2；Tangential support former 3 is connection
The inside and outside support element of mechanical hull and the former tangent with bearing saddle bore 2；The cross sectional shape of tangential former 3 includes but not limited to square
Shape, ellipse, circle, square, triangle etc.；The quantity of tangential former 3 can be determined according to using effect, wherein when bearing is adopted
When with rolling bearing, former quantity should be relatively prime with bearing ball quantity.As shown in Fig. 2, support former 3 by tie point B3-1 with
Housing exterior walls 4 connect, and support former 3 is connect by tie point C3-2 with bearing block inner wall 5.Bearing block processing method still uses
Traditional diamond-making technique, it is not necessary to change.
The support construction of traditional bearing seat can be summarized as whole radial plate type structure (shown in Fig. 3, Fig. 4) or radial webs
It is as shown in Figure 7 to vibrate the mechanism transmitted for formula structure (shown in Fig. 5, Fig. 6).In figure, 6 be the center of circle, and tie point B connects for former
At housing exterior walls, tie point C is that former connects at bearing block inner wall.It is as follows that transport mechanism is vibrated shown in Fig. 7：Former is radially
Arrangement, bearing block rigidity is maximum, and the vibrational energy that rotor oscillation generates radially transmits, that is, vibrates direction of transfer and arranged with former
Direction is parallel (being transmitted from C points to B points), and former stress is to stretch or compress at this time, and vibration transfer path is most short, and transmission efficiency
Also highest, vibrational energy by be lost it is minimum in a manner of, be transmitted to Housign support from axial center, and then continue to expand to body
It dissipates.
The rotating machinery resilient bearing holder structure of the utility model, multiple support formers 3 are tangentially-arranged, and support former 3 is in C
Point is tangent with bearing block inner wall 5, is connect in on-right angle with 1 tangent line of housing exterior walls in B points, bearing block support stiffness is planted earlier above at this time
Structure reduces, and according to the variation of former quantity, can be adjusted in wide range.It is as shown in Figure 8 that it vibrates transport mechanism：Vibrational energy
Amount generates in rotor rotation process, and vibrates and transmit starting point for C points, in a certain instantaneous, Vibration propagation starting point direction and portion
Framing plate is vertical, while forming an angle with remaining former.I.e. vibration direction of transfer it is vertical with part former, while with remaining width
Plate forms an angle.The former stress of perpendicular angle is equivalent to cantilever beam free end by vertical force, remaining former stress
State is equivalent to cantilever beam free end and is had when vibrating direction of transfer and consistent or parallel former arranged direction by non-perpendicular power
Individual former tensions or pressure.Under plumbness, the structural damping of former and the material damping of material itself can obtain most
The utilization of limits can largely consume rotor oscillation energy so that less residual vibration is transmitted in body.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (4)
1. a kind of elastic shaft bearing, including housing component, tangentially support former, bearing block inner wall, it is characterised in that：
The housing component is mechanical hull outer support part；
The bearing block inner wall is mechanical hull inner support member, and the cavity that the bearing block inner wall surrounds constitutes bearing saddle bore；
Circumferentially multiple tangential support formers between the housing component and bearing block inner wall, the tangential support former
It is tangent with the bearing saddle bore and connect in on-right angle with housing component tangent line.
2. elastic shaft bearing according to claim 1, it is characterised in that：The cross sectional shape of the tangential support former is square
Shape, ellipse, circle, square or triangle.
3. elastic shaft bearing according to claim 1, it is characterised in that：It is described tangential when bearing uses rolling bearing
Former quantity and bearing ball quantity are relatively prime.
4. elastic shaft bearing according to claim 1, it is characterised in that：Between tangential support former and the housing component
Junction and the junction between bearing block inner wall are round-corner transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721204089.9U CN207795876U (en) | 2017-09-20 | 2017-09-20 | A kind of elastic shaft bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721204089.9U CN207795876U (en) | 2017-09-20 | 2017-09-20 | A kind of elastic shaft bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795876U true CN207795876U (en) | 2018-08-31 |
Family
ID=63274537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721204089.9U Expired - Fee Related CN207795876U (en) | 2017-09-20 | 2017-09-20 | A kind of elastic shaft bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420438A (en) * | 2017-09-20 | 2017-12-01 | 大连派思透平动力科技有限公司 | A kind of elastic shaft bearing |
| CN111120312A (en) * | 2019-12-13 | 2020-05-08 | 珠海格力电器股份有限公司 | Design method of screw compressor and screw compressor |
-
2017
- 2017-09-20 CN CN201721204089.9U patent/CN207795876U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420438A (en) * | 2017-09-20 | 2017-12-01 | 大连派思透平动力科技有限公司 | A kind of elastic shaft bearing |
| CN111120312A (en) * | 2019-12-13 | 2020-05-08 | 珠海格力电器股份有限公司 | Design method of screw compressor and screw compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 116610 No. 73, Zhenpeng industrial city, Dalian Economic and Technological Development Zone, Liaoning Province Patentee after: Dalian oppner Turbine Power Technology Co.,Ltd. Address before: 116610 No. 73, Zhenpeng industrial city, Dalian Economic and Technological Development Zone, Liaoning Province Patentee before: DALIAN ENERGAS TURBINE POWER TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |