CN106704359A - Automatic centering ball sealing mechanism restraining fluid exciting force - Google Patents
Automatic centering ball sealing mechanism restraining fluid exciting force Download PDFInfo
- Publication number
- CN106704359A CN106704359A CN201611019646.XA CN201611019646A CN106704359A CN 106704359 A CN106704359 A CN 106704359A CN 201611019646 A CN201611019646 A CN 201611019646A CN 106704359 A CN106704359 A CN 106704359A
- Authority
- CN
- China
- Prior art keywords
- sealing
- raceway
- rotor
- sealing mechanism
- ball
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention provides an automatic centering ball sealing mechanism restraining fluid exciting force. The automatic centering ball sealing mechanism restraining fluid exciting force comprises an outer shell with the inner surface provided with a spherical raceway, a sealing block with the outer surface provided with at least one raceway and a rotor in sealing connection with the sealing block. At least one row of balls are further arranged between each raceway of the sealing block and the spherical raceway of the outer shell. Each raceway corresponds to one row of balls. Each ball makes point contact with the spherical raceway of the outer shell. Each ball makes arc face contact with the corresponding raceway of the sealing block. The sealing block surrounds and is sealed to the outer surface of the rotor and deflects along with the rotor. The automatic centering ball sealing mechanism has the beneficial effects that by means of the automatic centering ball sealing mechanism restraining fluid exciting force, the fluid exciting force caused by rotor inclination or deflection deformation can be reduced, and accordingly the fluid exciting resisting capability of the automatic centering ball sealing mechanism can be improved.
Description
Technical field
The present invention relates to a kind of automatic aligning ball sealing mechanism for suppressing fluid exciting force.
Background technology
Sealing plays the important function for suppressing fluid leakage, improving unit economy in turbomachinery.But rotating machinery
Being sealed in while suppression fluid is leaked can also produce exciting force, influence rotor stability.It is this people in traditional Labyrinth seal
On the basis of, honeycomb, brush, derotation stream, damping, helicla flute, ladder, mixing etc. are proposed by the structure for changing sealing itself
Novel seal pattern, achieves certain effect.
Above-mentioned sealing can unify to regard as that the change of fixed sealing, i.e. outer work condition will not cause oneself of sealing structure
Adapt to change.The nineties in last century, the U.S. proposes adjustable sealing concept, and its main thought is to introduce one gas to flow to the sealing back of the body
Portion, dynamic and static gaps are changed by changing gas pressure.Nineteen ninety, GE companies of the U.S. have developed positive seal, high by introducing
Pressure steam controls the folding of sealing block manually.Nineteen ninety-five, Toshiba Corp propose using pressure ripple management and control can
Adjust sealing.However, rotor during the actual rotation in addition to having certain bias, also there is a certain amount of inclination or bending become
Shape.
There are some researches show the problem that presently, there are includes：
(1) eccentric throw, deflection angle influence smaller to leakage rate；
(2) deflection angle, eccentric throw and radial load and tangential force are substantially linear, deflection angle, eccentric throw diameter
Influence to power is big compared with tangential force, and due to rotor tilt, radial load is gradually reduced with the increase of rotating speed and eccentric throw；
(3) increase of rotor tilt angle can make rotor cycle Numerical solution be deteriorated, the increase of unstability sector width.
The presence of problem above is additionally, since, flow induced vibrations problem can not possibly be solved at all.Therefore, it is necessary to carry
Go out it is a kind of can the fluid exciting force that causes of smaller turbomachinery inner sealing, and improve the suppression flow induced vibrations of turbomachinery performance
The automatic aligning ball sealing mechanism of power.
The content of the invention
It is an object of the invention to provide it is a kind of can the fluid exciting force that causes of smaller turbomachinery inner sealing, and improve
The automatic aligning ball sealing mechanism of the suppression fluid exciting force of turbomachinery performance.
Technical scheme is as follows：A kind of automatic aligning ball sealing mechanism for suppressing fluid exciting force, including interior table
Face is provided with the shell body of spherical raceway and outer surface is provided with the sealing block of at least one raceway and is tightly connected with the sealing block
Rotor；At least a row ball, Mei Yisuo are additionally provided between the raceway of the sealing block and the spherical raceway of the shell body
State raceway and be correspondingly arranged a row ball；Each ball is that point is contacted with the spherical raceway of the shell body, and often
The raceway of ball described in one and the corresponding sealing block is contacted for cambered surface；The sealing block around and be sealed in the rotor
Outer surface, and follow the rotor deflection.
Preferably, in the center of curvature of the spherical raceway of the shell body and the sealing of the automatic aligning ball sealing mechanism
The heart is consistent.
Preferably, also including the sealing tooth being located between the sealing block and the rotor, and the gear for sealing tooth
Set towards the side of the sealing block, and be tightly connected with the inner surface of the sealing block；The sealing tooth is around described turn
The outer surface of son, and sealing passage is formed and the outer surface of the rotor between.
The beneficial effects of the present invention are：The automatic aligning ball sealing mechanism for suppressing fluid exciting force can be mended automatically
Repay due to the coaxiality error that the flexure of axle and housing distortion are produced, and then reduce what is caused due to rotor tilt or deflection deformation
Fluid exciting force, so as to improve the resist fluids exciting ability of the automatic aligning ball sealing mechanism.
Brief description of the drawings
Fig. 1 is configuration state schematic diagram of the automatic aligning ball sealing mechanism provided in an embodiment of the present invention when concentric；
Fig. 2 is configuration state schematic diagram of the sealing mechanism of automatic aligning ball shown in Fig. 1 in rotor tilt.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The description of specific distinct unless the context otherwise, element and component in the present invention, quantity both can be with single shape
Formula is present, it is also possible to which multiple forms is present, and the present invention is defined not to this.Although the step in the present invention is entered with label
Arrangement is gone, but has been not used to limit the precedence of step, unless expressly stated the order of step or holding for certain step
Row is needed based on other steps, and the relative rank of otherwise step is adjustable.It is appreciated that used herein
Term "and/or" is related to and covers one of associated Listed Items or one or more of any and all possible group
Close.
Fig. 1 is referred to, is that configuration state of the automatic aligning ball sealing mechanism provided in an embodiment of the present invention when concentric is shown
It is intended to.The automatic aligning ball sealing mechanism for suppressing fluid exciting force provided in an embodiment of the present invention includes that inner surface is provided with ball
The shell body 1 of face raceway 2, at least a row ball 3, outer surface are provided with the sealing block 5 and the sealing block 5 of at least one raceway 4
The sealing tooth 6 being tightly connected and the rotor 7 being tightly connected with the sealing tooth 6.Preferably, the ball 3 is steel ball.
Wherein, the center seal of the automatic aligning ball sealing mechanism is exactly the center of rotation of the rotor 7.
In the present embodiment, the center of curvature of the spherical raceway 2 of the shell body 1 and the automatic aligning ball sealing mechanism
Center seal it is consistent.
The each described raceway 4 of the sealing block 5 is correspondingly arranged the row ball 3.In the present embodiment, the sealing
The outer surface of block 5 is provided with two raceways 4, and accordingly, the automatic aligning ball sealing mechanism is provided with described in two row
Ball 3, and each row ball 3 rolls along a raceway 4.It is selectable, according to actual conditions the need for, it is described close
The outer surface for sealing block 5 is also provided with raceway 4 described in or at least two, and accordingly, the automatic aligning ball is close
Sealing mechanism can set a row or at least two row balls 3, and the present invention is not limited this.
In the present embodiment, the raceway (4) of each ball 3 and the corresponding sealing block (5) is contacted for cambered surface；
The spherical raceway (2) of each ball (3) and the shell body (1) is to contact.Preferably, each ball 3 and phase
The raceway (4) of the corresponding sealing block (5) is contacted for elliptical arc surface.
The sealing tooth 6 is located between the sealing block 5 and the rotor 7, and the sealing block 5 is by the sealing tooth
6 around and be sealed in the outer surface of the rotor 7.
In the present embodiment, it is described sealing tooth 6 gear towards the sealing block 5 side set, and with the sealing
The inner surface of block 5 is tightly connected；And, it is described sealing tooth 6 around the outer surface of the rotor 7, and with the appearance of the rotor 7
Sealing passage is formed between face.
Therefore, in the automatic aligning ball sealing mechanism, if the rotor 7 is deflected, the sealing tooth 6 drives institute
Stating sealing block 5 follows the rotor 7 to deflect.
Additionally, the operation principle of the automatic aligning ball sealing mechanism is as follows：
The two row ball 3 is provided with the automatic aligning ball sealing mechanism, each row ball 3 is embedded in the sealing
The outer surface of block 5 is accordingly in raceway 4；The inner surface of the shell body 1 be spherical raceway 2, and the spherical raceway 2 curvature
Center is consistent with the center seal of the automatic aligning ball sealing mechanism, therefore, it can compensate flexure and the shell due to axle automatically
The coaxiality error that body deformation is produced.
Referring again to Fig. 1, now, the rotor 7 is concentric with the sealing block 5 and the shell body 1, in such case
Under, fluid exciting force is zero in the automatic aligning ball sealing mechanism.
Fig. 2 is referred to, is configuration state schematic diagram of the sealing mechanism of automatic aligning ball shown in Fig. 1 in rotor tilt.This
When, the sealing block 5 is subjected to the rotor 7 and inclines caused air-flow power effect, also deflects automatically, until described
Sealing block 5 is concentric with the rotor 7, and air-flow power is zero.
The automatic aligning ball sealing mechanism of the suppression fluid exciting force provided compared to prior art, the present invention can be automatic
Compensate due to the coaxiality error that the flexure of axle and housing distortion are produced, and then reduce because rotor tilt or deflection deformation cause
Fluid exciting force, so as to improve the resist fluids exciting ability of the automatic aligning ball sealing mechanism.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (3)
1. it is a kind of suppress fluid exciting force automatic aligning ball sealing mechanism, it is characterised in that：Sphere rolling is provided with including inner surface
The shell body (1) in road (2) and outer surface are provided with the sealing block (5) of at least one raceway (4) and are sealed with the sealing block (5) and connect
The rotor (7) for connecing；
At least one row rolling is additionally provided between the raceway (4) of the sealing block (5) and the spherical raceway (2) of the shell body (1)
Pearl (3), each raceway (4) is correspondingly arranged a row ball (3)；
The spherical raceway (2) of each ball (3) and the shell body (1) is to contact, and each ball (3) and phase
The raceway (4) of the corresponding sealing block (5) is contacted for cambered surface；
The sealing block (5) around and be sealed in the outer surface of the rotor (7), and follow the rotor (7) deflect.
2. it is according to claim 1 suppress fluid exciting force automatic aligning ball sealing mechanism, it is characterised in that：It is described outer
The center of curvature of the spherical raceway (2) of housing (1) is consistent with the center seal of the automatic aligning ball sealing mechanism.
3. it is according to claim 1 suppress fluid exciting force automatic aligning ball sealing mechanism, it is characterised in that：Also include
Be located at the sealing tooth (6) between the sealing block (5) and the rotor (7), and sealing tooth (6) gear towards described close
The side of envelope block (5) is set, and is tightly connected with the inner surface of the sealing block (5)；
Sealing tooth (6) forms sealing around the outer surface of the rotor (7) and the outer surface of the rotor (7) between
Passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611019646.XA CN106704359A (en) | 2016-11-18 | 2016-11-18 | Automatic centering ball sealing mechanism restraining fluid exciting force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611019646.XA CN106704359A (en) | 2016-11-18 | 2016-11-18 | Automatic centering ball sealing mechanism restraining fluid exciting force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704359A true CN106704359A (en) | 2017-05-24 |
Family
ID=58940945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611019646.XA Pending CN106704359A (en) | 2016-11-18 | 2016-11-18 | Automatic centering ball sealing mechanism restraining fluid exciting force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704359A (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020392A (en) * | 2017-12-16 | 2018-05-11 | 渤海大学 | Exciting device outside a kind of MEMS micro-structure four-axle type pieces based on inverse piezoelectric effect |
| CN108036912A (en) * | 2017-12-16 | 2018-05-15 | 渤海大学 | Exciting device outside a kind of MEMS micro-structure triple axle pieces based on inverse piezoelectric effect |
| CN108120578A (en) * | 2017-12-16 | 2018-06-05 | 渤海大学 | A kind of triple axle exciting bank that shock loading can be loaded to MEMS micro-structures |
| CN108151991A (en) * | 2017-12-16 | 2018-06-12 | 渤海大学 | A kind of four-axle type Piezoelectric Ceramics Excitation device for the test of MEMS micro-structure dynamic characteristics |
| CN108168817A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structure triple axle exciting devices based on pedestal motivational techniques |
| CN108163804A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | It is a kind of can dynamic driving MEMS micro-structures four-axle type exciting bank |
| CN108168814A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of four-axle type exciting device that piece external excitation can be carried out to MEMS micro-structures |
| CN108163806A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structure four-axle type seat excitation apparatus based on piezoelectric ceramics |
| CN108163805A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | For the triple axle exciting device of MEMS micro-structure dynamic characteristics test |
| CN108168818A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structure triple axle seat excitation apparatus based on piezoelectric ceramics |
| CN108168813A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structures four-axle type exciting bank |
| CN108168816A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | It is a kind of can dynamic driving MEMS micro-structures triple axle exciting bank |
| CN108168815A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structure triple axle exciting banks by Piezoelectric Ceramic |
| CN108181069A (en) * | 2017-12-16 | 2018-06-19 | 渤海大学 | A kind of MEMS micro-structure four-axle type dynamic loading devices based on piezoelectric ceramics |
| CN108181068A (en) * | 2017-12-16 | 2018-06-19 | 渤海大学 | A kind of triple axle exciting device that piece external excitation can be carried out to MEMS micro-structures |
| CN108195536A (en) * | 2017-12-16 | 2018-06-22 | 渤海大学 | A kind of four-axle type exciting device for being used to carry out MEMS micro-structures dynamic load |
| CN108217582A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure four-axle type exciting devices based on pedestal motivational techniques |
| CN108225699A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | It is a kind of using piezoelectric ceramics as the MEMS micro-structure triple axle exciting devices of driving source |
| CN108225701A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure triple axle seat excitation apparatus by stacking Piezoelectric Ceramic |
| CN108225702A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of triple axle Piezoelectric Ceramics Excitation device for the test of MEMS micro-structure dynamic characteristics |
| CN108217589A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure triple axle dynamic loading devices based on piezoelectric ceramics |
| CN108217584A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of triple axle exciting device for being used to carry out MEMS micro-structures dynamic load |
| CN108217588A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure four-axle type seat excitation apparatus by stacking Piezoelectric Ceramic |
| CN108217583A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure triple axle exciting banks with mobile base structure |
| CN110342602A (en) * | 2019-07-18 | 2019-10-18 | 中国石油集团渤海钻探工程有限公司 | A kind of oil/gas well exhaust-gas treatment spin current degasser |
| CN114060405A (en) * | 2021-11-19 | 2022-02-18 | 成都陵川特种工业有限责任公司 | Trunnion bearing capable of automatically adjusting coaxiality of left lug and right lug |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2839720Y (en) * | 2005-08-24 | 2006-11-22 | 钱林荣 | Joint bearing |
| CN201401441Y (en) * | 2009-04-07 | 2010-02-10 | 温岭市环宇轴承有限公司 | Aligning ball bearing |
| CN204175809U (en) * | 2014-03-07 | 2015-02-25 | 浙江正达环保设备有限公司 | A kind of bearing support adopting labyrinth ring seal ring |
| JP2015121236A (en) * | 2013-12-20 | 2015-07-02 | Ntn株式会社 | Self-aligning roller bearing |
-
2016
- 2016-11-18 CN CN201611019646.XA patent/CN106704359A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2839720Y (en) * | 2005-08-24 | 2006-11-22 | 钱林荣 | Joint bearing |
| CN201401441Y (en) * | 2009-04-07 | 2010-02-10 | 温岭市环宇轴承有限公司 | Aligning ball bearing |
| JP2015121236A (en) * | 2013-12-20 | 2015-07-02 | Ntn株式会社 | Self-aligning roller bearing |
| CN204175809U (en) * | 2014-03-07 | 2015-02-25 | 浙江正达环保设备有限公司 | A kind of bearing support adopting labyrinth ring seal ring |
Cited By (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020392A (en) * | 2017-12-16 | 2018-05-11 | 渤海大学 | Exciting device outside a kind of MEMS micro-structure four-axle type pieces based on inverse piezoelectric effect |
| CN108036912A (en) * | 2017-12-16 | 2018-05-15 | 渤海大学 | Exciting device outside a kind of MEMS micro-structure triple axle pieces based on inverse piezoelectric effect |
| CN108120578A (en) * | 2017-12-16 | 2018-06-05 | 渤海大学 | A kind of triple axle exciting bank that shock loading can be loaded to MEMS micro-structures |
| CN108151991A (en) * | 2017-12-16 | 2018-06-12 | 渤海大学 | A kind of four-axle type Piezoelectric Ceramics Excitation device for the test of MEMS micro-structure dynamic characteristics |
| CN108168817A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structure triple axle exciting devices based on pedestal motivational techniques |
| CN108163804A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | It is a kind of can dynamic driving MEMS micro-structures four-axle type exciting bank |
| CN108168814A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of four-axle type exciting device that piece external excitation can be carried out to MEMS micro-structures |
| CN108163806A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structure four-axle type seat excitation apparatus based on piezoelectric ceramics |
| CN108163805A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | For the triple axle exciting device of MEMS micro-structure dynamic characteristics test |
| CN108168818A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structure triple axle seat excitation apparatus based on piezoelectric ceramics |
| CN108168813A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structures four-axle type exciting bank |
| CN108168816A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | It is a kind of can dynamic driving MEMS micro-structures triple axle exciting bank |
| CN108168815A (en) * | 2017-12-16 | 2018-06-15 | 渤海大学 | A kind of MEMS micro-structure triple axle exciting banks by Piezoelectric Ceramic |
| CN108181069A (en) * | 2017-12-16 | 2018-06-19 | 渤海大学 | A kind of MEMS micro-structure four-axle type dynamic loading devices based on piezoelectric ceramics |
| CN108181068A (en) * | 2017-12-16 | 2018-06-19 | 渤海大学 | A kind of triple axle exciting device that piece external excitation can be carried out to MEMS micro-structures |
| CN108195536A (en) * | 2017-12-16 | 2018-06-22 | 渤海大学 | A kind of four-axle type exciting device for being used to carry out MEMS micro-structures dynamic load |
| CN108217582A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure four-axle type exciting devices based on pedestal motivational techniques |
| CN108225699A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | It is a kind of using piezoelectric ceramics as the MEMS micro-structure triple axle exciting devices of driving source |
| CN108225701A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure triple axle seat excitation apparatus by stacking Piezoelectric Ceramic |
| CN108225702A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of triple axle Piezoelectric Ceramics Excitation device for the test of MEMS micro-structure dynamic characteristics |
| CN108217589A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure triple axle dynamic loading devices based on piezoelectric ceramics |
| CN108217584A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of triple axle exciting device for being used to carry out MEMS micro-structures dynamic load |
| CN108217588A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure four-axle type seat excitation apparatus by stacking Piezoelectric Ceramic |
| CN108217583A (en) * | 2017-12-16 | 2018-06-29 | 渤海大学 | A kind of MEMS micro-structure triple axle exciting banks with mobile base structure |
| CN108225701B (en) * | 2017-12-16 | 2019-05-31 | 渤海大学 | A kind of MEMS micro-structure triple axle seat excitation apparatus by stacking Piezoelectric Ceramic |
| CN108168815B (en) * | 2017-12-16 | 2019-05-31 | 渤海大学 | A kind of MEMS micro-structure triple axle exciting bank by Piezoelectric Ceramic |
| CN108181068B (en) * | 2017-12-16 | 2019-05-31 | 渤海大学 | A kind of triple axle exciting device that piece external excitation can be carried out to MEMS micro-structure |
| CN108217583B (en) * | 2017-12-16 | 2019-05-31 | 渤海大学 | A kind of MEMS micro-structure triple axle exciting bank with mobile base structure |
| CN108168816B (en) * | 2017-12-16 | 2019-06-21 | 渤海大学 | It is a kind of can dynamic driving MEMS micro-structure triple axle exciting bank |
| CN108225699B (en) * | 2017-12-16 | 2019-06-21 | 渤海大学 | It is a kind of using piezoelectric ceramics as the MEMS micro-structure triple axle exciting device of driving source |
| CN108225702B (en) * | 2017-12-16 | 2019-06-21 | 渤海大学 | A kind of triple axle Piezoelectric Ceramics Excitation device for the test of MEMS micro-structure dynamic characteristics |
| CN108168817B (en) * | 2017-12-16 | 2019-06-25 | 渤海大学 | A kind of MEMS micro-structure triple axle exciting device based on pedestal motivational techniques |
| CN108168814B (en) * | 2017-12-16 | 2019-09-03 | 渤海大学 | A kind of four-axle type exciting device that piece external excitation can be carried out to MEMS micro-structure |
| CN108151991B (en) * | 2017-12-16 | 2019-09-24 | 渤海大学 | A kind of four-axle type Piezoelectric Ceramics Excitation device for the test of MEMS micro-structure dynamic characteristics |
| CN108020392B (en) * | 2017-12-16 | 2019-10-18 | 渤海大学 | Exciting device outside a kind of MEMS micro-structure four-axle type piece based on inverse piezoelectric effect |
| CN110342602A (en) * | 2019-07-18 | 2019-10-18 | 中国石油集团渤海钻探工程有限公司 | A kind of oil/gas well exhaust-gas treatment spin current degasser |
| CN114060405A (en) * | 2021-11-19 | 2022-02-18 | 成都陵川特种工业有限责任公司 | Trunnion bearing capable of automatically adjusting coaxiality of left lug and right lug |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106704359A (en) | Automatic centering ball sealing mechanism restraining fluid exciting force | |
| US6695478B2 (en) | Squeeze film damping type bearing | |
| CN103403300B (en) | Axial brush seal and power turbine | |
| CN104632297B (en) | Rotating machinery aspirates seal assembly and its assembly method | |
| US3326453A (en) | Gas-bearing assembly | |
| CN107044480A (en) | Bearing with drainage loop and press-filming damping device | |
| JPS6362915A (en) | Bearing supporter | |
| JPS60263723A (en) | Compression film damper | |
| KR100826994B1 (en) | Shaft sealing device for generator | |
| JP6012505B2 (en) | Shaft seal device and rotary machine | |
| EP3382230B1 (en) | Squeeze film damper with low pressure reservoirs and related method | |
| CN104204419B (en) | Turbine | |
| US20190055853A1 (en) | Bearing Centering Spring and Damper | |
| US8932001B2 (en) | Systems, methods, and apparatus for a labyrinth seal | |
| CN108533334A (en) | Turbine suction face seal assembly | |
| CN107387772A (en) | A kind of compact ultrahigh speed refractory machinery seals device | |
| US6626574B2 (en) | Squeeze film damping type bearing | |
| JPS6199719A (en) | Support assembly for shaft | |
| CN108005793A (en) | A kind of tile sealing structure | |
| JP5093807B2 (en) | Hydrostatic gas bearing spindle | |
| WO2013153868A1 (en) | Brush seal | |
| JP2011247307A (en) | Labyrinth seal device | |
| KR100749828B1 (en) | Radial foil bearing with seal function | |
| US12055097B2 (en) | Device for centering and guiding a shaft of an aircraft turbine engine | |
| JP2021110241A (en) | Compression system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
|
| RJ01 | Rejection of invention patent application after publication |