CN113669361A - Tilting pad bearing capable of actively controlling radial clearance - Google Patents
Tilting pad bearing capable of actively controlling radial clearance Download PDFInfo
- Publication number
- CN113669361A CN113669361A CN202110913546.6A CN202110913546A CN113669361A CN 113669361 A CN113669361 A CN 113669361A CN 202110913546 A CN202110913546 A CN 202110913546A CN 113669361 A CN113669361 A CN 113669361A
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- bearing
- oil
- bearing bush
- flexible hinge
- oil outlet
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- 239000000919 ceramic Substances 0.000 claims abstract description 22
- 238000004904 shortening Methods 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 153
- 230000009471 action Effects 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/03—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings
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- 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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/02—Sliding-contact bearings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Support Of The Bearing (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a tilting pad bearing capable of actively controlling radial clearance through a piezoelectric ceramic driver, which relates to the technical field of fluid dynamic pressure bearings and comprises a bearing and a journal matched with the bearing, wherein the bearing comprises a body, a flexible hinge bearing bush, a thrust hemisphere, a piezoelectric ceramic driver, a bolt and a cover plate; the flexible hinge bearing bush comprises a movable platform, a bearing bush bent table and two fixed ends; the bearing bush fixing device comprises a body, a bearing bush fixing device, a fixing device and a fixing device, wherein at least three bearing bush cavities are formed in the body along the circumferential direction, and at least three flexible hinge bearing bushes are uniformly arranged in the bearing bush cavities and are positioned and fixed through fixing ends of the flexible hinge bearing bushes; the body is further provided with at least three cylindrical cavities which are communicated with the bearing bush cavities and are uniformly arranged, and piezoelectric ceramic drivers are arranged in the cylindrical cavities; the extension or the shortening of the piezoelectric ceramic driver is controlled to drive the moving platform to move along the radial direction, so that the bearing bush bending platform is driven to move along the radial direction, and the active control on the oil film gap can be realized.
Description
Technical Field
The invention relates to the technical field of fluid dynamic pressure bearings, in particular to a tilting pad bearing capable of actively controlling radial clearance.
Background
The bearing bush of the tilting-pad bearing is generally composed of 3-5 shoe blocks, and the shoe blocks are arc-shaped and can freely swing along with the changes of rotating speed, load and bearing oil temperature, so that the shoe blocks are automatically adjusted to the optimal position for forming an oil wedge. The oil film pressure of each pad on the journal is always led to the center of the journal, and a force source causing the journal to whirl is eliminated, so that the better stability of the bearing is ensured. In addition, the tilting pad bearing has the advantages of large bearing capacity, low friction power consumption, allowance of radial load in all directions and the like. Can be used for various working conditions with different requirements and has wide application prospect.
In a traditional tilting pad bearing, after an oil film gap is established between a bearing bush and a journal, the bearing bush automatically rotates for a certain angle according to the real-time working condition, so that the dynamic balance between a bearing bush corner and the journal is achieved through oil film pressure. However, the average value of the oil film thickness is basically kept constant, and since the average value of the oil film thickness determines the oil film pressure on each bearing bush, the tilting pad bearing cannot be guaranteed to be kept in an optimal working state. The invention actively controls the size of the oil film gap between the bearing bush and the journal through the piezoelectric ceramic driver, and realizes the active control of the oil film pressure between the bearing and the journal, thereby ensuring that the tilting pad bearing is kept in the optimal working state, and being applied to the occasions of improving the rotation precision of the journal, inhibiting the vibration of the journal, actively controlling the axle center track and the like.
Disclosure of Invention
The invention aims to provide a tilting pad bearing capable of actively controlling radial clearance, which is applied to occasions of improving the rotation precision of a shaft neck, inhibiting the vibration of the shaft neck, actively controlling the track of an axis and the like.
The technical scheme of the invention is that the tilting pad bearing capable of actively controlling the radial clearance comprises a bearing and a journal matched with the bearing, wherein the bearing comprises a body, a flexible hinge bearing bush, a thrust hemisphere, a piezoelectric ceramic driver, a bolt and a cover plate; the bearing bush fixing device comprises a body, a bearing bush fixing device, a fixing device and a fixing device, wherein at least three bearing bush cavities are formed in the body along the circumferential direction, and at least three flexible hinge bearing bushes are uniformly arranged in the bearing bush cavities and are positioned and fixed through fixing ends of the flexible hinge bearing bushes; the body is further provided with at least three cylindrical cavities which are communicated with the bearing bush cavities and are uniformly arranged, and piezoelectric ceramic drivers are arranged in the cylindrical cavities; the flexible hinge bearing bush comprises a movable platform, a bearing bush bent table and two fixed ends; the mobile platform is connected with the two fixed ends through a flexible hinge A and a flexible hinge B, the deformation rigidity of the flexible hinge is extremely low, and the mobile platform can move radially under the action of the flexible hinge A and the flexible hinge B; the movable platform is connected with the bearing bush curved platform through a flexible hinge C, and the bearing bush curved platform can automatically rotate around the flexible hinge C; an oil film gap is arranged between the bearing bush curved platform and the shaft neck; the piezoelectric ceramic driver is connected with the moving platform of the flexible hinge bearing bush through a thrust hemisphere; the extension or the shortening of the piezoelectric ceramic driver is controlled to drive the moving platform to move along the radial direction, so that the bearing bush bending platform is driven to move along the radial direction, and the active control on the oil film gap can be realized.
Furthermore, a radial threaded hole A is formed in the position, corresponding to the cylindrical cavity, of the outer cylindrical surface of the body, a bolt is arranged in the radial threaded hole A, and the piezoelectric ceramic driver can be replaced by detaching the bolt.
Furthermore, an oil inlet hole A and an oil inlet hole B are formed in the outer cylindrical surface of the body, and the oil inlet hole A and the oil inlet hole B are respectively communicated with the axial oil guide hole B and the axial oil guide hole D.
Furthermore, an annular groove and a plurality of axial threaded holes B are formed in the end face of the body, a plurality of threaded holes C are formed in the cover plate, and the cover plate is installed on the end face of the body through the axial threaded holes B and the threaded holes C, so that the annular groove forms a closed oil supply circuit.
Furthermore, the annular groove is respectively communicated with the axial oil guide hole A, the axial oil guide hole B, the axial oil guide hole C, the axial oil guide hole D and the axial oil guide hole E; the axial oil guide hole A, the axial oil guide hole B, the axial oil guide hole C, the axial oil guide hole D and the axial oil guide hole E are further communicated with the oil outlet hole A, the oil outlet hole B, the oil outlet hole C, the oil outlet hole D and the oil outlet hole E in sequence.
Furthermore, on the inner cylinder of the body, oil outlet convex bodies are arranged at the outlet positions of the oil outlet hole A, the oil outlet hole B, the oil outlet hole C, the oil outlet hole D and the oil outlet hole E, so that the oil outlet position is closer to the shaft neck, and the lubricating oil is more easily filled in the whole oil film gap under the driving of the rotating speed of the shaft neck.
In a traditional tilting pad bearing, after an oil film gap is established between a bearing bush and a journal, the bearing bush automatically rotates for a certain angle according to the real-time working condition, so that the dynamic balance between a bearing bush corner and the journal is achieved through oil film pressure. However, the average value of the oil film thickness remains substantially constant, which does not ensure that the tilting pad bearing remains in an optimal operating state. The tilting pad bearing capable of actively controlling the radial clearance manufactured by the technical scheme of the invention has the beneficial effects that: the extension and the shortening of the piezoelectric ceramic driver act on the thrust hemisphere to push the fixed platform of the flexible hinge bearing bush to move radially, so that the radial motion of the bearing bush curved platform is further driven, the active control on the oil film gap is realized, and the oil film dynamic pressure in the rotation process of the journal is controlled. At the position where the oil film clearance is reduced, the dynamic pressure of the oil film is increased, and the local supporting force on the journal is increased; at the position where the oil film clearance increases, the dynamic pressure of the oil film decreases, and the local supporting force for the journal decreases. The cooperative matching of the plurality of flexible hinge bearing bushes can realize the control of pressure, rigidity and damping on the journal, and the method is applied to occasions such as maintaining the optimal working state of the tilting pad bearing, improving the rotation precision of the journal, inhibiting the vibration of the journal, actively controlling the axle center track and the like. In addition, through the arrangement of the flexible hinge, the characteristics of no mechanical friction, no clearance and high motion sensitivity of the flexible hinge are utilized, and the sensitivity of actively controlling the radial position of the bearing bush can be further improved.
Drawings
FIG. 1 is a schematic view of an actively controlled radial clearance tilting pad bearing configuration of the present invention;
FIG. 2 is a transverse cross-sectional view of an actively controlled radial clearance tilt pad bearing of the present invention;
FIG. 3 is an axial view of an actively controlled radial clearance tilt pad bearing of the present invention;
FIG. 4 is an axial view of the body of the present invention;
FIG. 5 is a schematic structural view of a compliant hinge bearing shell of the present invention;
fig. 6 is a schematic structural view of the end cap of the present invention.
In the above-described figures, the first and second,
1. a bearing;
11. a body; 110. oil outlet convex bodies; 111. a threaded hole A; 112. a cylindrical cavity; 113. an oil inlet A; 114. an oil inlet B; 115. an axial oil guide hole A; 116. an axial oil guide hole B; 117. an axial oil guide hole C; 118. an axial oil guide hole D; 119. an axial oil guide hole E; 1110. an oil outlet A; 1111. an oil outlet B; 1112. an oil outlet C; 1113. an oil outlet D; 1114. an oil outlet E; 1115. an annular groove; 1116. a bearing bush cavity; 1117. a threaded hole B;
12. a flexible hinge bearing pad; 121. a mobile platform; 122. a flexible hinge A; 123. a flexible hinge B; 124. a flexible hinge C; 125. a bearing bush bending platform; 126. a fixed end;
13. a thrust hemisphere; 14. a piezoelectric ceramic driver; 15. a bolt;
16. a cover plate; 161. a threaded hole C; 17. oil film clearance;
2. and (3) a shaft neck.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments is as follows:
a tilting pad bearing capable of actively controlling radial clearance is disclosed in figures 1 to 6, and comprises a bearing 1 and a journal 2 matched with the bearing 1, wherein the bearing 1 comprises a body 11, a flexible hinge bearing pad 12, a thrust hemisphere 13, a piezoelectric ceramic driver 14, a bolt 15 and a cover plate 16. Wherein, 5 bearing bush cavities 1116 are arranged in the body 11 along the circumferential direction, and 5 flexible hinge bearing bushes 12 are uniformly arranged in the 5 bearing bush cavities 1116 of the body 11 and are positioned and fixed by the fixing end 126; the body 11 is further provided with 5 cylindrical cavities 112 which are communicated with the bearing bush cavities 1116 and are uniformly arranged, and piezoelectric ceramic drivers 14 are arranged in the cylindrical cavities 112; the flexible hinge bearing bush 12 comprises a moving platform 121, a bearing bush curved platform 125 and two fixed ends 126; the moving platform 121 is connected with the two fixed ends 126 through a flexible hinge A122 and a flexible hinge B123, the deformation rigidity of the flexible hinge is extremely low, and the moving platform 121 can move radially under the action of the flexible hinge A122 and the flexible hinge B123; the movable platform 121 is connected with the bearing bush curved platform 125 through a flexible hinge C124, and the bearing bush curved platform 125 can rotate around the flexible hinge C124 automatically; an oil film gap 17 is arranged between the bearing bush curved platform 125 and the journal 2; the piezoelectric ceramic driver 14 is connected with the moving platform 121 of the flexible hinge bearing bush 12 through a thrust hemisphere 13; the extension or the shortening of the piezoelectric ceramic driver 14 is controlled to drive the moving platform 121 to move along the radial direction, so as to drive the bearing bush bending platform 125 to move along the radial direction, and the active control on the size of the oil film gap 17 can be realized.
The outer cylindrical surface of the body 11 is provided with a radial threaded hole A111 corresponding to the cylindrical cavity 112, a bolt 15 is arranged in the threaded hole A111, and the piezoelectric ceramic driver 14 can be replaced by detaching the bolt 15.
An oil inlet A113 and an oil inlet B114 are formed in the outer cylindrical surface of the body 11, and the oil inlet A113 and the oil inlet B114 are respectively communicated with an axial oil guide hole B116 and an axial oil guide hole D118.
The end face of the body 11 is provided with an annular groove 1115 and a plurality of axial threaded holes B1117, the cover plate 16 is provided with a plurality of threaded holes C161, and the cover plate 16 is installed on the end face of the body 11 through the axial threaded holes B1117 and the threaded holes C161, so that the annular groove 1115 forms a closed oil supply circuit.
The annular groove 1115 is respectively communicated with the axial oil guide hole A115, the axial oil guide hole B116, the axial oil guide hole C117, the axial oil guide hole D118 and the axial oil guide hole E119; the axial oil guide hole A115, the axial oil guide hole B116, the axial oil guide hole C117, the axial oil guide hole D118 and the axial oil guide hole E119 are further communicated with the oil outlet hole A1110, the oil outlet hole B1111, the oil outlet hole C1112, the oil outlet hole D1113 and the oil outlet hole E1114 in sequence.
On the inner cylindrical surface of the body 11, the oil outlet convex body 110 is arranged at the outlet positions of the oil outlet hole a1110, the oil outlet hole B1111, the oil outlet hole C1112, the oil outlet hole D1113 and the oil outlet hole E1114, so that the oil outlet position is closer to the journal 2, and the lubricating oil is driven by the rotation speed of the journal 2 to fill the whole oil film gap 17 easily.
In the tilting pad bearing for actively controlling the radial clearance, the oil flow path is as follows: oil enters the bearing through an oil inlet A113 and an oil inlet B114, then a part of the oil enters the annular groove 1115 through the vertically communicated axial oil guide hole B116 and the axial oil guide hole D118, and a part of the oil enters the oil film gap 17 through the communicated oil outlet B1111 and the oil outlet D1113. The oil entering the annular groove 1115 can flow into the axial oil guide hole a115, the axial oil guide hole C117, and the axial oil guide hole E119 along the annular groove 1115, and further enter the oil film clearance 17 through the oil outlet hole a1110, the oil outlet hole C1112, and the oil outlet hole E1114. The oil entering the oil film gap 17 gradually fills the oil film gap 17, so that an oil film is formed on the matching surface between the bearing bush curved platform 125 and the journal 2, and the friction between the bearing body 11 and the journal 2 caused by metal contact is effectively reduced.
In the working process of the tilting pad bearing for actively controlling the radial clearance, when the load of the journal 2 changes dynamically, the dynamic pressure distribution of an oil film on the bearing pad curved platform 125 changes, and the resultant force generated by the dynamic pressure on the bearing pad curved platform 125 changes, so that the bearing pad curved platform 125 can rotate around the flexible hinge C124 autonomously, and the inclination of the wedge-shaped clearance between the bearing pad curved platform 125 and the journal 2 is adjusted autonomously. Meanwhile, the extension and the shortening of the piezoelectric ceramic driver 14 are controlled to act on the thrust hemisphere 13, so that the moving platform 121 is pushed to move radially around the flexible hinge A122 and the flexible hinge B123, and further the bearing bush curved platform 125 is driven to move radially, and the active control on the size of the oil film gap 17 can be realized. Therefore, the size of the oil film gap 17 can be actively controlled according to the dynamic change of the load, and further the size of the dynamic pressure between the bearing bush crank platform 125 and the shaft neck 2 can be actively controlled, so that the purposes of improving the rotation precision of the shaft neck, inhibiting the vibration of the shaft neck, actively controlling the axle center track and the like are achieved.
The invention has been described above with reference to a preferred embodiment, but the scope of protection of the invention is not limited thereto, and various modifications can be made and equivalents can be substituted for elements thereof without departing from the scope of the invention, and features mentioned in the various embodiments can be combined in any way as long as there is no structural conflict, and any reference sign in the claims should not be construed as limiting the claim concerned, from which the embodiment is to be regarded as being exemplary and non-limiting in any way. Therefore, all technical solutions that fall within the scope of the claims are within the scope of the present invention.
Claims (6)
1. A tilting pad bearing capable of actively controlling radial clearance comprises a bearing (1) and is characterized by further comprising a journal (2) matched with the bearing (1), wherein the bearing (1) comprises a body (11), a flexible hinge bearing bush (12), a thrust hemisphere (13), a piezoelectric ceramic driver (14), a bolt (15) and a cover plate (16);
at least three bearing bush cavities (1116) are formed in the body (11) along the circumferential direction, at least three flexible hinge bearing bushes (12) are uniformly placed in the bearing bush cavities (1116), and are positioned and fixed through fixed ends (126) of the flexible hinge bearing bushes;
the body (11) is further internally provided with at least three cylindrical cavities (112) which are communicated with the bearing bush cavities (1116) and are uniformly arranged, and piezoelectric ceramic drivers (14) are arranged in the cylindrical cavities (112);
the flexible hinge bearing bush (12) comprises a movable platform (121), a bearing bush curved platform (125) and two fixed ends (126); the moving platform (121) is connected with the two fixed ends (126) through a flexible hinge A (122) and a flexible hinge B (123), and the moving platform (121) can move radially under the action of the flexible hinge A (122) and the flexible hinge B (123); the moving platform (121) is connected with the bearing bush curved platform (125) through a flexible hinge C (124), and the bearing bush curved platform (125) can rotate around the flexible hinge C (124) automatically;
an oil film gap (17) is arranged between the bearing bush curved platform (125) and the journal (2);
the piezoelectric ceramic driver (14) is connected with a movable platform (121) of the flexible hinge bearing bush (12) through a thrust hemisphere (13);
the extension or the shortening of the piezoelectric ceramic driver (14) is controlled to drive the movable platform (121) to move along the radial direction, and further drive the bearing bush bending platform (125) to move along the radial direction, so that the active control on the size of the oil film gap (17) can be realized.
2. An actively controlled radial gap tilting pad bearing according to claim 1, characterized in that the body (11) is provided with a radial threaded hole a (111) on the outer cylindrical surface corresponding to the cylindrical cavity (112), a bolt (15) is arranged in the radial threaded hole a (111), and the piezoceramic driver (14) can be replaced by removing the bolt (15).
3. An actively controlled radial clearance tilting pad bearing according to claim 1, characterized in that said body (11) is provided with an annular groove (1115) and a plurality of axial threaded holes B (1117) on its end face, said cover plate (16) is provided with a plurality of threaded holes C (161), said cover plate (16) is mounted on the end face of the body (11) through the axial threaded holes B (1117) and the threaded holes C (161), so that the annular groove (1115) forms a closed oil supply path.
4. An actively controlled radial gap tilting pad bearing according to claim 3, characterized in that said body (11) has an oil inlet hole A (113) and an oil inlet hole B (114) on its outer cylindrical surface; the oil outlet A (1110), the oil outlet B (1111), the oil outlet C (1112), the oil outlet D (1113) and the oil outlet E (1114) are arranged on the inner cylindrical surface of the body (11) and the flexible hinge bearing bush (12) at intervals; and the annular groove (1115) is communicated with the oil outlet A (1110), the oil outlet B (1111), the oil outlet C (1112), the oil outlet D (1113) and the oil outlet E (1114) through the axial oil guide hole A (115), the axial oil guide hole B (116), the axial oil guide hole C (117), the axial oil guide hole D (118) and the axial oil guide hole E (119).
5. An actively controlled radial clearance tilting pad bearing according to claim 4, wherein said oil inlet A (113) and B (114) are in communication with said axial oil guide hole B (116) and D (118), respectively.
6. The tilting pad bearing with active radial clearance control as claimed in claim 4, wherein the oil outlet convex body (110) is arranged on the inner cylindrical surface of the body (11) at the outlet positions of the oil outlet A (1110), the oil outlet B (1111), the oil outlet C (1112), the oil outlet D (1113) and the oil outlet E (1114), so that the oil outlet position is closer to the journal (2), and the lubricating oil is easier to fill the whole oil film clearance (17) driven by the rotation speed of the journal (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110913546.6A CN113669361B (en) | 2021-08-10 | 2021-08-10 | Tilting pad bearing capable of actively controlling radial clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110913546.6A CN113669361B (en) | 2021-08-10 | 2021-08-10 | Tilting pad bearing capable of actively controlling radial clearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113669361A true CN113669361A (en) | 2021-11-19 |
| CN113669361B CN113669361B (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110913546.6A Active CN113669361B (en) | 2021-08-10 | 2021-08-10 | Tilting pad bearing capable of actively controlling radial clearance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776700A (en) * | 2022-05-04 | 2022-07-22 | 宜兴市环宇轴瓦制造有限公司 | Tilting-pad type supporting thrust composite bearing of high-power steam turbine |
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| CN109952443A (en) * | 2016-10-27 | 2019-06-28 | 诺沃皮尼奥内技术股份有限公司 | Tilting-pad bearing and its manufacturing method |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058457A (en) * | 1990-04-30 | 1992-02-05 | 罗素·D·艾迪 | Hydrodynamic bearing with the continuous beam on mounting support surface |
| JPH07293553A (en) * | 1994-04-21 | 1995-11-07 | Ebara Corp | Tilting pad type bearing |
| CN103225728A (en) * | 2013-04-24 | 2013-07-31 | 山东大学 | Two-dimensional parallel micromotion platform driven by piezoceramic |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114776700A (en) * | 2022-05-04 | 2022-07-22 | 宜兴市环宇轴瓦制造有限公司 | Tilting-pad type supporting thrust composite bearing of high-power steam turbine |
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| Publication number | Publication date |
|---|---|
| CN113669361B (en) | 2023-03-14 |
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