CN106763198A - A kind of tilting thrust bearing of complicated slip surface - Google Patents
A kind of tilting thrust bearing of complicated slip surface Download PDFInfo
- Publication number
- CN106763198A CN106763198A CN201710140101.2A CN201710140101A CN106763198A CN 106763198 A CN106763198 A CN 106763198A CN 201710140101 A CN201710140101 A CN 201710140101A CN 106763198 A CN106763198 A CN 106763198A
- Authority
- CN
- China
- Prior art keywords
- region
- thrust bearing
- bearing
- tile fragment
- tilting thrust
- 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
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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention provides a kind of tilting thrust bearing of complicated slip surface, including some tile fragments, and the upper surface of tile fragment is divided into two regions:Near the region I and remaining region II of entrance area, wherein, region I is hydrophobic surface by surface treatment, so that with relatively low limiting shearing stress, interface sliding easily occur;Region II is water-wetted surface by surface treatment, so as to limiting shearing stress higher, be not susceptible to interface sliding;After the Center of Pressure change and inclined to the pendulum characteristic of tile fragment that consideration interfacial effect is brought, optimization obtains the radial direction and circumferentially distributed scope of region I, after lubricant medium is by region I inflow regions II, because the continuity of media flow can produce extra pressure spike, so as to increase the bearing capacity of tilting thrust bearing, because the fluid shearing viscous force in the I of region reduces, so as to reduce the friction torque of tilting thrust bearing, different zones step design solves the not anti abrasive problem of hydrophobic ingredient in the I of region.
Description
Technical field
The invention belongs to technical field of bearings, more particularly to a kind of tilting thrust bearing of complicated slip surface.
Background technology
Thrust bearing directly determines whole mechanical system as the basis in mechanical system and key components and parts, its performance
Life and reliability.With the gradually popularization of water lubrication, large scale water lubriucated bearing has that thickness is small, linear velocity is high
Feature, corresponding shear rate is so great that between solid liquid interface, especially in hydrophobic surface, it may occur that interface
Sliding.
First it is that Spikes applies interface sliding in thrust slide bearing in research of the forefathers to interface sliding
Reduce the friction torque of bearing, the later stage has scholar that interface sliding is applied into concentric radial plain bearing and parallel-plate thrust bearing
In, reduce friction torque while bearing capacity is improved.
At present in mandate, disclosed patent, patent《With the thrust bearing of interface sliding technology》(application number:
200810025059.0 notification number CN100545469C) disclose a kind of utilization interface sliding characteristic by the flat board that is parallel to each other
The new thrust bearing of composition, has preferable antifriction, antiwear characteristic while realizing certain bearing capacity;Patent《With boundary
Face slides the concentric radial plain bearing to be formed》(application number:201510203567.3 notification number CN104791381A) disclose
A kind of concentric journal bearing of utilization interface sliding characteristic, bearing has the characteristic of certain bearing capacity and antifriction;However, above
The design bearing formed with interface sliding of announcement has only focused on bearing capacity and frictional force have been subtracted with after interface sliding
Few, the Center of Pressure for being but not concerned with being brought by interface sliding offsets, so this design can not apply to tilting thrust bearing
In, identical design parameter may bring the failure of tilting thrust bearing.
Because prior art has above-mentioned deficiency, there is presently no the complicated interface slip shaft for tilting thrust bearing
Hold design.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, the tile fragment for tilting thrust bearing can incline pendulum characteristic, the present invention
Purpose be that a kind of tilting thrust bearing of complicated slip surface is provided, can improve tilting thrust bearing bearing capacity and
Reduce friction.
To achieve these goals, the technical solution adopted by the present invention is:
A kind of tilting thrust bearing of complicated slip surface, including some tile fragments, the upper surface of the tile fragment is divided into
Two regions:Near the region I and remaining region II of entrance area, wherein, region I is hydrophobic surface by surface treatment, from
And there is relatively low limiting shearing stress, easily there is interface sliding;Region II is water-wetted surface by surface treatment, so as to have
Limiting shearing stress higher, is not susceptible to interface sliding.
The height of the region I is less than the height of region II, and difference in height determines according to the duty parameter of bearing actual motion,
Minimum thickness of liquid film operating to thrust bearing is for same magnitude and is directly proportional, will not with the hydrophobic surface in the I of protection zone
Worn and torn caused by starting with docking process.
Change in view of interface sliding to Center of Pressure, the circumferential scope of the region I is no more than whole tile fragment cornerite
75%, otherwise because the tile fragment pendulum that can incline can cause the failure of bearing.
Compared with prior art, the beneficial effects of the invention are as follows:
(1) complicated slip surface design is carried out using interface sliding effect in tilting thrust bearing, can be simultaneously real
The high bearing capacity and low friction moment of existing tilting thrust bearing.
(2) change of the interface sliding effect to Center of Pressure is considered in the design, so as to avoid design can
Incline and fail in watt thrust bearing.
(3) abrasion in shutdown process to hydrophobic surface is avoided using the step design of part tile fragment so that bearing is excellent
Change effect more lasting.
Brief description of the drawings
Fig. 1 is thrust bearing pad interface sliding surface design diagram of the present invention.
Fig. 2 is thrust bearing pad apparent height design diagram of the present invention.
Fig. 3 is the pressure distribution schematic diagram before the embodiment of the present invention 1 optimizes.
Fig. 4 is the pressure distribution schematic diagram after the optimization of the interface sliding of the embodiment of the present invention 1.
Specific embodiment
Describe embodiments of the present invention in detail with reference to the accompanying drawings and examples.
Embodiment 1
Optimize the external diameter of thrust bearing in the present embodiment for 800mm, internal diameter is 400mm, cornerite is 40 °, is radially propped up partially
Coefficient is 0.524, and circumferential branch coefficient partially is 0.609, and normal work rotating speed is 1500rpm, and average operation pressure is 0.544MPa.
As shown in figure 1, the upper surface of tile fragment is divided into two regions:Near the region I and remaining region II of entrance area,
Wherein, region I is hydrophobic surface by surface treatment, so that with relatively low limiting shearing stress, interface sliding easily occur;Area
Domain II is water-wetted surface by surface treatment, so as to limiting shearing stress higher, be not susceptible to interface sliding.
As shown in Fig. 2 height of the height of region I less than region II, the height of region I is than region II's in the present embodiment
It is highly low 40 μm, will not be worn and torn caused by starting with docking process with the hydrophobic surface in the I of protection zone.
Limiting shearing stress is 0.4Pa after region I surface treatments in the present embodiment, and slip length is 100 μm, region II tables
Limiting shearing stress is 1MPa after the treatment of face, and slip length is 0.
In the present embodiment region I along tile fragment circumference accounting 75%, along tile fragment radial direction accounting 60%.
Using the film pressure distribution before interface sliding effect as shown in figure 3, using interface sliding effect in the present embodiment
Pressure distribution afterwards is as shown in Figure 4.Figure 4, it is seen that region I and region II boundary liquid film generate one compared with
Big pressure spike, so as to improve the bearing capacity of bearing;Because the fluid viscous force in the I of region is greatly reduced, so as to drop
The low bearing capacity of bearing.The minimum thickness of bearing can improve 50%, and moment of friction can reduce 60%.
Embodiment 2
Optimize the external diameter of thrust bearing in the present embodiment for 800mm, internal diameter is 400mm, cornerite is 40 °, is radially propped up partially
Coefficient is 0.524, and circumferential branch coefficient partially is 0.5, and tile fragment preprocessing has 25 μm of arc convex, and normal work rotating speed is
1500rpm, average operation pressure is 0.544MPa.
As shown in figure 1, the upper surface of tile fragment is divided into two regions:Near the region I and remaining region II of entrance area,
Wherein, region I is hydrophobic surface by surface treatment, so that with relatively low limiting shearing stress, interface sliding easily occur;Area
Domain II is water-wetted surface by surface treatment, so as to limiting shearing stress higher, be not susceptible to interface sliding.
As shown in Fig. 2 height of the height of region I less than region II, the height of region I is than region II's in the present embodiment
It is highly low 40 μm, will not be worn and torn caused by starting with docking process with the hydrophobic surface in the I of protection zone.
Limiting shearing stress is 0.4Pa after region I surface treatments in the present embodiment, and slip length is 100 μm, region II tables
Limiting shearing stress is 1MPa after the treatment of face, and slip length is 0.
In the present embodiment region I along tile fragment circumference accounting 60%, along tile fragment radial direction accounting 60%.
45% can be improved using the minimum thickness of the bearing after interface sliding effect, moment of friction can be with the present embodiment
Reduce 52%.
These are only the preferred embodiments of the present invention, be not intended to limit the invention, the present invention can have it is various change and
Change.All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in this hair
Within bright protection domain.
Operation principle of the invention:
In the course of work, fluid enters from tile fragment entrance side, outlet side outflow, when by region I, due to tile fragment surface
Neighbouring shear stress is more than surface limit shear stress, so solid-liquid surface there occurs interface sliding so that the stream near tile fragment
Body speed is more than theoretical without sliding numerical value.And when by region II, because tile fragment surface limit shear stress is more than fluid
, there is no interface sliding in shear stress so that the fluid velocity near tile fragment tends to 0 between solid-liquid surface.In region, I flows to area
During the II of domain, fluid velocity there occurs reduction suddenly, in order to ensure the continuity of fluid flow in flowing, one can be produced in boundary
Individual pressure spike (as shown in Figure 3 and Figure 4) so that bearing capacity increases, simultaneously because the fluid viscous force in the I of region reduces,
So that the moment of friction of bearing reduces.At the same time, region I's is highly relatively low, this guarantees region I in it is hydrophobic into
Dividing will not be worn in the start and stop stage.
Claims (5)
1. a kind of tilting thrust bearing of complicated slip surface, including some tile fragments, it is characterised in that the upper table of the tile fragment
Face is divided into two regions:Near the region I and remaining region II of entrance area, wherein, region I is hydrophobic by surface treatment
Surface, so that with relatively low limiting shearing stress, interface sliding easily occur;Region II is water-wetted surface by surface treatment,
So as to have limiting shearing stress higher, interface sliding is not susceptible to.
2. the tilting thrust bearing of complicated slip surface according to claim 1, it is characterised in that the height of the region I
Height of the degree less than region II, will not be worn and torn with the hydrophobic surface in the I of protection zone caused by starting with docking process.
3. the tilting thrust bearing of complicated slip surface according to claim 2, it is characterised in that the region I and area
The difference in height of domain II determines according to the duty parameter of bearing actual motion, is same with the operating liquid film minimum thickness of thrust bearing
One magnitude.
4. the tilting thrust bearing of complicated slip surface according to claim 1, it is characterised in that the week of the region I
To scope no more than the 75% of whole tile fragment cornerite.
5. the tilting thrust bearing of complicated slip surface according to claim 4, it is characterised in that in eccentric support bearing
And under specific operation, region I circumference accountings 75%, along tile fragment radial direction accounting 60%;Under centre bearing bearing and specific operation,
Region I circumference accountings 60%, along tile fragment radial direction accounting 60%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710140101.2A CN106763198B (en) | 2017-03-10 | 2017-03-10 | Tilting pad thrust bearing with complex sliding surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710140101.2A CN106763198B (en) | 2017-03-10 | 2017-03-10 | Tilting pad thrust bearing with complex sliding surface |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106763198A true CN106763198A (en) | 2017-05-31 |
CN106763198B CN106763198B (en) | 2022-07-01 |
Family
ID=58962048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710140101.2A Active CN106763198B (en) | 2017-03-10 | 2017-03-10 | Tilting pad thrust bearing with complex sliding surface |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106763198B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107989898A (en) * | 2017-11-10 | 2018-05-04 | 袁虹娣 | The miniature ladder bearing of the uniform small ladder of bearing surface |
CN108006070A (en) * | 2017-11-21 | 2018-05-08 | 袁虹娣 | The miniature fixed bush segment thrust slide bearing of uniform bearing surface small inclination |
CN108612759A (en) * | 2018-07-09 | 2018-10-02 | 武汉科技大学 | A kind of thrust pad bearing that inclines with micro- texture area and slip surface |
CN109538626A (en) * | 2018-10-25 | 2019-03-29 | 江苏大学 | The compound micro- texture plane sector tile fragment thrust bearing of one kind and its processing method |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0791441A (en) * | 1993-09-21 | 1995-04-04 | Mitsubishi Heavy Ind Ltd | Tilting pad thrust bearing |
JPH0893753A (en) * | 1994-09-22 | 1996-04-09 | Mitsubishi Heavy Ind Ltd | Tilting pad thrust bearing |
US20020110295A1 (en) * | 1997-03-31 | 2002-08-15 | Miller William H. | Tilting pad for bearings |
CN101265942A (en) * | 2008-04-21 | 2008-09-17 | 淮海工学院 | Thrust bearing applying interface sliding technology |
CN101398030A (en) * | 2008-11-14 | 2009-04-01 | 淮海工学院 | Anti friction high bearing capacity micro precision bearing |
CN102606618A (en) * | 2012-04-01 | 2012-07-25 | 张永斌 | Novel energy-saving tilting-pad thrust slide bearing |
DE102011103455A1 (en) * | 2011-06-03 | 2012-12-06 | Bayerische Motoren Werke Aktiengesellschaft | Slide bearing shell, especially for motor applications |
US20140003750A1 (en) * | 2011-03-11 | 2014-01-02 | Uwe Lehmann | Plain bearing half liner |
CN206647428U (en) * | 2017-03-10 | 2017-11-17 | 清华大学 | A kind of tilting thrust bearing of complicated slip surface |
-
2017
- 2017-03-10 CN CN201710140101.2A patent/CN106763198B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0791441A (en) * | 1993-09-21 | 1995-04-04 | Mitsubishi Heavy Ind Ltd | Tilting pad thrust bearing |
JPH0893753A (en) * | 1994-09-22 | 1996-04-09 | Mitsubishi Heavy Ind Ltd | Tilting pad thrust bearing |
US20020110295A1 (en) * | 1997-03-31 | 2002-08-15 | Miller William H. | Tilting pad for bearings |
CN101265942A (en) * | 2008-04-21 | 2008-09-17 | 淮海工学院 | Thrust bearing applying interface sliding technology |
CN101398030A (en) * | 2008-11-14 | 2009-04-01 | 淮海工学院 | Anti friction high bearing capacity micro precision bearing |
US20140003750A1 (en) * | 2011-03-11 | 2014-01-02 | Uwe Lehmann | Plain bearing half liner |
DE102011103455A1 (en) * | 2011-06-03 | 2012-12-06 | Bayerische Motoren Werke Aktiengesellschaft | Slide bearing shell, especially for motor applications |
CN102606618A (en) * | 2012-04-01 | 2012-07-25 | 张永斌 | Novel energy-saving tilting-pad thrust slide bearing |
CN206647428U (en) * | 2017-03-10 | 2017-11-17 | 清华大学 | A kind of tilting thrust bearing of complicated slip surface |
Non-Patent Citations (1)
Title |
---|
杨利花等: "可倾瓦气体动压轴承承载能力的数值分析", 《润滑与密封》 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107989898A (en) * | 2017-11-10 | 2018-05-04 | 袁虹娣 | The miniature ladder bearing of the uniform small ladder of bearing surface |
CN108006070A (en) * | 2017-11-21 | 2018-05-08 | 袁虹娣 | The miniature fixed bush segment thrust slide bearing of uniform bearing surface small inclination |
CN108006070B (en) * | 2017-11-21 | 2020-06-30 | 智创未来科技发展有限公司 | Small-inclination-angle miniature fixed tile thrust sliding bearing with uniform bearing surface |
CN108612759A (en) * | 2018-07-09 | 2018-10-02 | 武汉科技大学 | A kind of thrust pad bearing that inclines with micro- texture area and slip surface |
CN109538626A (en) * | 2018-10-25 | 2019-03-29 | 江苏大学 | The compound micro- texture plane sector tile fragment thrust bearing of one kind and its processing method |
Also Published As
Publication number | Publication date |
---|---|
CN106763198B (en) | 2022-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106763198A (en) | A kind of tilting thrust bearing of complicated slip surface | |
CN206647428U (en) | A kind of tilting thrust bearing of complicated slip surface | |
CN103842667B (en) | The axial rolling bearing of booster | |
US6106224A (en) | Downthrust pads for submersible centrifugal pumps | |
Martsinkovsky et al. | Designing thrust sliding bearings of high bearing capacity | |
NL7906058A (en) | ANTI-FRICTION DEVICE, IN PARTICULAR FOR A TURBINE, AND METHOD OF MANUFACTURING THE SAME. | |
CN106523518A (en) | Variable-width type bump foil aerodynamic gas radial bearing and mounting method thereof | |
CN204226435U (en) | Heat radiation bearing | |
WO2015141806A1 (en) | Foil bearing | |
CN108194498A (en) | With the special-shaped clinoplain fixed bush segment thrust slide bearing of interface sliding | |
CN107795577A (en) | A kind of bush(ing) bearing | |
CN108612759B (en) | Tilting thrust pad bearing with micro-texture area and sliding surface | |
CN106870562A (en) | A kind of taper dynamic and hydrostatic bearing sub-assembly of diameter of axle surface-texturing | |
CN104930054A (en) | Roller bearing | |
CN104067012B (en) | Swash plate | |
CN202040203U (en) | Oil wedge thrust bearing for turbocharger | |
CN206280383U (en) | A kind of water lubricating thrust bearing possessing new construction | |
JP2009257590A (en) | Water-lubrication segment type bearing device and water turbine | |
CN203257885U (en) | Sliding bearing with pressure maintaining ring | |
CN206972763U (en) | A kind of fueling injection equipment for thrust bearing | |
CN110131305A (en) | Thrust bearing of turbocharger device | |
CN107387766A (en) | A kind of carbon ring sealing structure of imitative desert beetle shell on the back Surface Texture | |
Oguma et al. | Water Lubricated guide bearing with self-aligning segments | |
CN211144888U (en) | Thrust bearing and centrifugal compressor | |
CN109139699B (en) | Special-shaped inclined plane platform thrust sliding bearing with interface slippage at whole moving surface and inlet area static surface |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |