CN106438706A - Large-scale water-lubricating thrust bearing three-section bushing surface - Google Patents
Large-scale water-lubricating thrust bearing three-section bushing surface Download PDFInfo
- Publication number
- CN106438706A CN106438706A CN201610986766.0A CN201610986766A CN106438706A CN 106438706 A CN106438706 A CN 106438706A CN 201610986766 A CN201610986766 A CN 201610986766A CN 106438706 A CN106438706 A CN 106438706A
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- CN
- China
- Prior art keywords
- water
- thrust bearing
- bushing surface
- tiling
- wedge
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- 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.)
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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
- 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
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention relates to a large-scale water-lubricating thrust bearing three-section bushing surface which is characterized in that the width of a water-inlet edge wedge-shaped bevel is the same as that of a water-outlet edge wedge-shaped bevel; the maximum values delta of the water-inlet edge wedge-shaped bevel and the water-outlet edge wedge-shaped bevel are consistent; the bushing surface, the water-inlet edge wedge-shaped bevel and the water-outlet edge wedge-shaped bevel are all plane; a circumferential micro-convex surface is defined by three sections, namely the bushing surface, the water-inlet edge wedge-shaped bevel and the water-outlet edge wedge-shaped bevel; and when starting up, the bushing surface of a thrust bearing is provided with a wedge-shaped water film required for operation, thereby quickly achieving a dynamic lubricating effect and reducing abrasion in a start-up transition process. As the bushing surface is designed to be a micro-convex surface, the water film can be formed in a start-up process and the bearing capacity of the thrust bearing can be improved; as the cylindrical bushing surface is provided with a wedge-shaped water film required for operation when starting up, the dynamic lubricating effect can be quickly achieved and the abrasion in the start-up transition process of the bushing surface can be reduced; the bushing surface has a certain plane, so that the weight of a rotor can be borne by the thrust bearing when the bushing surface is in a shut-down state; and the bushing surface is applicable to thrust bearings for nuclear power main pump motors and other various fields.
Description
Technical field
The present invention relates to a kind of three sections of face tilings of large-scale water lubricating thrust bearing.
Background technology
Thrust bearing is one of most important parts in nuclear power main pump motor, can its service behaviour is directly connected to unit Safe operation.With the raising of nuclear power generating equipment operational reliability, the requirement to thrust bearing is also higher.In large-scale three generations's nuclear powerAP1000 main pump motor adopts imported bearing, in independent development CAP1400 main pump motor process, the external buying of bearing is limited, relate to exploitation and the non-maintaining superelevation requirement of validation problem .60 of bearing, just need to carry out particular design .Large-scale water lubricating thrust bearing to thrust bearing, in order to improve the bearing capacity of thrust bearing and reduce tiling abrasion, needs tiling to have certain Reasonable Shape, to adapt to the service requirement of thrust bearing under various operating modes.
Content of the invention
The purpose of the present invention is to disclose a kind of water lubricating thrust bearing three-stage watt of the bearing capacity for improving thrust bearing Face, can quickly form dynamic lubrication effect, reach the purpose for reducing abrasion of the tiling in start-up transition process.The skill of the present invention Art scheme is: three sections of face tilings of a kind of large-scale water lubricating thrust bearing, tiling water inlet limit wedge shape groove (1) and outlet edge wedge shape slope The width of mouth (2) is identical, enters waterside consistent with the maximum δ of the wedge shape groove of outlet edge.
Tiling (3) with enter waterside wedge shape groove (1) and outlet edge wedge shape groove (2) is plane, three sections of faces of tiling (3) with enter waterside wedge shape groove (1) and outlet edge wedge shape groove (2) form circumferential dimpling face, i.e. circumferentially approximate cylinder of three sections of face tilings.
Three sections of face tiling (3) circumferences of water lubricating thrust bearing are symmetrical.
Three sections of face tilings of large-scale water lubricating thrust bearing, simple structure, manufacturability is strong.
Operation principle：Large-scale water lubrication central supported thrust bearing, tiling be dimpling face, one be beneficial to shape in starting process
Become moisture film, two is the bearing capacity for improving bearing.Large-scale water lubricating thrust bearing adopts central supported, if adopting plane watt,
During starting, dynamic lubrication effect is formed, complete, the regular hour to be had as rotating speed increases.This process
Time longer, the abrasion caused by tiling is heavier.And the tilings such as cylinder are adopted, during starting, tiling has the wedge needed for operation
Shape moisture film, can quickly form dynamic lubrication effect, reduce abrasion of the tiling in the transient process for starting.
Large-scale water lubricating thrust bearing, in order to improve the bearing capacity of thrust bearing, needs tiling to have certain reasonable shape
Shape, to adapt to service requirement of the thrust bearing under various operating modes.The approximate cylinder of three sections of face tilings, tiling circumference is dimpling face,
It is radially plane, the bearing capacity of bearing can be improved.
On rotating thrust bearing, tiling quasi spline is different from unidirectional operation.Three sections of face tiling designs, tiling
Into and out of the width of waterside wedge shape groove, consistent into and out of the maximum gauge δ of the wedge shape groove of waterside.
Stopped status, thrust bearing undertakes rotor weight.As tiling has certain plane, local stress can't be caused
Larger, the adverse effect caused by tiling can also reduce.
During starting, tiling has default wedge shape moisture film, can form the moisture film needed for dynamic lubrication at once, reduces tiling
The time of the generation abrasion in starting process, and then reduce tiling wear extent, moreover it is possible to improve bearing load carrying capacity.But type face chi
Very little larger, the bearing capacity of bearing can be reduced.
Impact of the size in three sections of faces of thrust bearing tiling to bearing water film thickness.Increase with three sections of face sizes, which is minimum
Water film thickness rises, and average water film thickness declines.
Advantages of the present invention is：One is that two is the bearing capacity for improving bearing beneficial to formation moisture film in starting process.Improve
The bearing capacity of thrust bearing, adapts to service requirement of the thrust bearing under various operating modes.The tiling in three sections of faces makes thrust bearing
Tiling has wedge shape moisture film when starting needed for operation, can quickly form dynamic lubrication effect, reaches reduction tiling and started
The purpose of the abrasion in transient.Large-scale water lubricating thrust bearing tiling is using three sections of face tilings, simple structure, and manufacturability is strong.
Using three sections of face tilings, tiling has the wedge shape moisture film needed for operation, can quickly form dynamic lubrication effect, reduction watt during starting
Abrasion of the face in the transient process for starting.Tiling has certain plane, local stress can't be caused larger, tiling is caused
Adverse effect can also reduce.Tiling has default wedge shape moisture film, can form the moisture film needed for dynamic lubrication at once, reduces
The time of generation abrasion of the tiling in starting process, and then reduce tiling wear extent, moreover it is possible to improve bearing load carrying capacity.
Description of the drawings
Three sections of face tiling figures of the large-scale water lubricating thrust bearing of Fig. 1
Fig. 2 is the top view of Fig. 1
Specific embodiment
As shown in figure 1, a kind of three sections of face tilings of large-scale water lubricating thrust bearing, involved position is moistened for specific type of electric machine water
Sliding central supported thrust bearing.
As shown in Fig. 2 a kind of three sections of face tilings of large-scale water lubricating thrust bearing, tiling enters waterside wedge shape groove 1 and water outlet
The width of side wedge shape groove 2 is identical, and the maximum δ for entering the wedge shape groove 1 of waterside and the wedge shape groove 2 of outlet edge is consistent.Tiling 3
With enter waterside wedge shape groove 1 and outlet edge wedge shape groove 2 is plane, tiling 3 with enter waterside wedge shape groove 1 and outlet edge wedge shape
Three sections of faces of groove 2 constitute circumferential dimpling face, also just constitute the approximate cylinder of circumference.Three sections of face tiling weeks of water lubricating thrust bearing
To symmetrical.
Large-scale water lubricating thrust bearing tiling is using three sections of face tilings, simple structure, and manufacturability is strong.Beneficial in starting process
Moisture film is formed, the bearing capacity of bearing is improved, adapt to service requirement of the thrust bearing under various operating modes, and positive and negative can transport
OK.Suitable for multiple fields such as nuclear power main pump motor center support thrust bearings.
Claims (3)
1. a kind of three sections of face tilings of large-scale water lubricating thrust bearing, is characterized in that：Tiling enters waterside wedge shape groove (1) and outlet edge
The width of wedge shape groove (2) is identical, enters waterside consistent with the maximum δ of the wedge shape groove of outlet edge.
2. three sections of face tilings of large-scale water lubricating thrust bearing according to claim 1, is characterized in that：Tiling (3) and water inlet
Side wedge shape groove (1) and outlet edge wedge shape groove (2) are plane, tiling (3) with enter waterside wedge shape groove (1) and outlet edge wedge
Three sections of faces of shape groove (2) constitute the circumferential section approximate cylinder of face tiling circumference of dimpling face, i.e., three.
3. three sections of face tilings of large-scale water lubricating thrust bearing according to claim 1, is characterized in that：Water lubricating thrust bearing
Three sections of face tiling (3) circumferences are symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986766.0A CN106438706A (en) | 2016-11-09 | 2016-11-09 | Large-scale water-lubricating thrust bearing three-section bushing surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986766.0A CN106438706A (en) | 2016-11-09 | 2016-11-09 | Large-scale water-lubricating thrust bearing three-section bushing surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438706A true CN106438706A (en) | 2017-02-22 |
Family
ID=58207339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610986766.0A Pending CN106438706A (en) | 2016-11-09 | 2016-11-09 | Large-scale water-lubricating thrust bearing three-section bushing surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438706A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061482A (en) * | 2017-02-27 | 2017-08-18 | 清华大学 | A kind of thrust bearing shoe valve with Novel tile facial contour |
| CN108150523A (en) * | 2017-12-20 | 2018-06-12 | 中国船舶重工集团公司第七0三研究所 | A kind of efficient slide thrust bearing bearing shell suitable for rotating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065913A (en) * | 1991-04-15 | 1992-11-04 | 罗素D·艾迪 | Fluid dynamic bearing with spaced bearing shoes and method of making same |
| DE20317497U1 (en) * | 2003-07-05 | 2004-03-11 | Man B & W Diesel Ag | Plain thrust bearing for bearings in an exhaust gas turbocharger's rotating shaft linked to a lubricating oil circuit, has a sliding surface and a bearing surface with lubricating gap |
| DE19641673B4 (en) * | 1996-10-11 | 2005-09-01 | Abb Turbo Systems Ag | axial plain |
| CN101705963A (en) * | 2009-11-27 | 2010-05-12 | 中国北车集团大连机车研究所有限公司 | Dongfeng series internal combustion locomotive supercharger thrust bearing |
| CN204900526U (en) * | 2015-07-24 | 2015-12-23 | 哈尔滨电气动力装备有限公司 | Lubricated thrust bearing bearing structure in self -balancing hengshui is moved in anti -interference |
-
2016
- 2016-11-09 CN CN201610986766.0A patent/CN106438706A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065913A (en) * | 1991-04-15 | 1992-11-04 | 罗素D·艾迪 | Fluid dynamic bearing with spaced bearing shoes and method of making same |
| DE19641673B4 (en) * | 1996-10-11 | 2005-09-01 | Abb Turbo Systems Ag | axial plain |
| DE20317497U1 (en) * | 2003-07-05 | 2004-03-11 | Man B & W Diesel Ag | Plain thrust bearing for bearings in an exhaust gas turbocharger's rotating shaft linked to a lubricating oil circuit, has a sliding surface and a bearing surface with lubricating gap |
| CN101705963A (en) * | 2009-11-27 | 2010-05-12 | 中国北车集团大连机车研究所有限公司 | Dongfeng series internal combustion locomotive supercharger thrust bearing |
| CN204900526U (en) * | 2015-07-24 | 2015-12-23 | 哈尔滨电气动力装备有限公司 | Lubricated thrust bearing bearing structure in self -balancing hengshui is moved in anti -interference |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061482A (en) * | 2017-02-27 | 2017-08-18 | 清华大学 | A kind of thrust bearing shoe valve with Novel tile facial contour |
| CN108150523A (en) * | 2017-12-20 | 2018-06-12 | 中国船舶重工集团公司第七0三研究所 | A kind of efficient slide thrust bearing bearing shell suitable for rotating |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
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| WD01 | Invention patent application deemed withdrawn after publication |