CN201218164Y - Abrasion-proof bearing liner of four-oil wedge hydraulic turbine - Google Patents
Abrasion-proof bearing liner of four-oil wedge hydraulic turbine Download PDFInfo
- Publication number
- CN201218164Y CN201218164Y CNU2008201217627U CN200820121762U CN201218164Y CN 201218164 Y CN201218164 Y CN 201218164Y CN U2008201217627 U CNU2008201217627 U CN U2008201217627U CN 200820121762 U CN200820121762 U CN 200820121762U CN 201218164 Y CN201218164 Y CN 201218164Y
- Authority
- CN
- China
- Prior art keywords
- oil film
- film wedge
- oil
- bush body
- watt
- 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.)
- Expired - Fee Related
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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
Abstract
The utility model discloses a wearable bearing bush of a four-wedge hydroturbine, which comprises an annular-ring shape bush body. Four oil inlet holes are evenly arranged on the circumference of the outer side surface of the bush body and penetrate the bush body, four protuberant oil wedges which are axisymmetric are evenly arranged on the inner side surface of the bush body, and the oil wedges contain circular arc surfaces which are coaxial with the bush body, which not only reduces the friction area between a mainshaft and the bush body, but also ensures that cooling oil enters into the inner side of the bush body smoothly, and achieves better cooling effect; moreover, an annular wearable belt is arranged outside the bush body, thereby the wearing resistance between a rotating oil disc and the bush body can be increased.
Description
Technical field
The utility model relates to a kind of mechanical part, relates in particular to a kind of four oil film wedge water turbine abrasion-proof bearing bush.
Background technique
Water power is a clean energy resource, and is renewable, pollution-free, and operating cost is low, and China greatly develops HYDROELECTRIC ENERGY in recent years, thus increase greatly as the vitals bearing bush demand of hydroelectric generator, and also higher to the designing requirement of bearing shell.Existing bearing shell inboard is generally smooth disc, though the oil inlet hole on the continuous circumference from the side injects cold oil, but because bearing directly contacts with bearing shell 360 degree, inject relatively difficulty of cold oil, so oil mass is few, only can play lubricated effect, and can not effectively lower the temperature, easily cause tile kilning.In addition, the bearing shell outside contacts with the rotation food tray, and be in the water environment, thus be prone to wear phenomenon, particularly in the power station of hydrologic condition difference, it is even more serious to wear and tear, cause and rotate food tray and bush gap increase, cause and get rid of oily phenomenon befouling environment, also can cause high pressure water and fine sand to enter oil pocket, thereby pull bearing shell, reduction of service life
Summary of the invention
The utility model provides a kind of have good cooling-down effect and four extremely strong oil film wedge water turbine abrasion-proof bearing bush of wear resistance.
A kind of four oil film wedge water turbine abrasion-proof bearing bush, comprise ring watt body, on watt external side circumference four oil inlet holes are set evenly, oil inlet hole penetrates a watt body, described watt of body inner side surface evenly is provided with the oil film wedge of axisymmetric four projections, and oil film wedge comprises the arc surface coaxial with watt body.
The cross section of described oil film wedge is a half moon, the thickest end of oil film wedge be with watt body coaxial 5 the degree～10 the degree arc surfaces, all the other are thickness attenuation gradually partly, and on the same cross section of watt body, the thickest end of oil film wedge, the thinnest end are spent angles with 45 degree～65 that are wired in axle center respectively.
Described watt of external side circumference is provided with the wear-resisting band of ring-type.
Described oil inlet hole is positioned at each oil film wedge gap location in the inboard outlet port of watt body.
When the structure of the utility model bearing shell is rotated main shaft in watt body, with the surface of contact of watt body be the arc surfaces of four 5 degree～10 degree, reduced the surface of contact of main shaft greatly with watt body, therefore also reduced the heat that friction produces, the gap between oil film wedge of entering that has no resistance when cold oil from oil inlet hole, take on the oil film wedge by the rotation of main shaft immediately, cooling oil mass between main shaft and watt body is increased greatly, and under the influence of main shaft high speed rotating, form dynamic pressure oil film, four dynamic pressure oil films have symmetrically effectively been offset the stressed of watt body, improve the operation balance of main shaft greatly, prolong the working life of bearing shell.In a watt external side the wear-resisting band of ring-type is set, has increased watt body and the wear resistance of rotating the food tray point of contact.
It is obvious that the bearing shell that the utility model provides has cooling-down effect, and the extremely strong characteristics of wear resistance.
Description of drawings
Fig. 1 is the structural representation of the utility model four oil film wedge water turbine abrasion-proof bearing bush;
Fig. 2 is that bearing shell AA shown in Figure 1 is to sectional view;
Fig. 3 is the utility model four oil film wedge water turbine abrasion-proof bearing bush assembling schematic representation.
Embodiment
As depicted in figs. 1 and 2, a kind of four oil film wedge water turbine abrasion-proof bearing bush, comprise ring watt body 1, watt body inner side surface is provided with four axisymmetric projection oil film wedges 3, oil film wedge 3 is made by high-abrasive material, the cross section is a half moon, the thickest end of oil film wedge be with watt body coaxial 5 the degree～10 the degree arc surfaces, all the other are thickness attenuation gradually partly, on the same cross section of watt body, the thickest end of oil film wedge, the thinnest end are spent angles with 45 degree～65 that are wired in axle center respectively, and oil inlet hole 2 penetrates watt body 1, and inboard import is in each oil film wedge 3 gap location.Main shaft 5 is the oil film wedge 3 one ends arc surfaces coaxial with watt body with the surface of contact of watt body 1, the heat that reduces friction is produced owing to surface of contact reduces, and there is sufficient cold oil to come in from oil inlet hole 2, be brought on the oil film wedge 3 along with the rotation of main shaft 5, improve cooling-down effect greatly, when cold oil is taken on the oil film wedge 3 by main shaft 5, between main shaft 5 and watt body 1, will form one deck dynamic pressure oil film, four even axisymmetric dynamic pressure oil films are effectively offset the force intensity that is subjected to of watt body 1, the operation that makes main shaft 5 is balance more, has prolonged the working life of bearing shell.Be provided with the point of contact that rotates food tray 6 in watt body 1 outside that ring-type is wear-resisting is with 4, increase wear-resistance of bearing pad, when rotating food tray 6 runnings, be not prone to wear phenomenon and get rid of oily phenomenon.
Claims (4)
1. oil film wedge water turbine abrasion-proof bearing bush, comprise ring watt body (1), on watt body (1) the outer side surface circumference four oil inlet holes (2) are set evenly, oil inlet hole (2) penetrates a watt body, it is characterized in that: described watt of body (1) inner side surface evenly is provided with the oil film wedge (3) of axisymmetric four projections, and oil film wedge (3) comprises and the coaxial arc surface of a watt body (1).
2, four oil film wedge water turbine abrasion-proof bearing bush as claimed in claim 1, it is characterized in that: the cross section of described oil film wedge (3) is a half moon, the thickest end of oil film wedge (3) be with a watt body (1) coaxial 5 the degree～10 the degree arc surfaces, all the other are thickness attenuation gradually partly, on the same cross section of watt body (1), the thickest end of oil film wedge (3), the thinnest end respectively with the axle center be wired to 45 degree～65 degree angles.
3, four oil film wedge water turbine abrasion-proof bearing bush as claimed in claim 1, it is characterized in that: described watt of body (1) outer side surface circumference is provided with the wear-resisting band of ring-type (4).
4, four oil film wedge water turbine abrasion-proof bearing bush as claimed in claim 1, it is characterized in that: described oil inlet hole (2) is positioned at each oil film wedge (3) gap location in the inboard outlet port of a watt body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201217627U CN201218164Y (en) | 2008-07-22 | 2008-07-22 | Abrasion-proof bearing liner of four-oil wedge hydraulic turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201217627U CN201218164Y (en) | 2008-07-22 | 2008-07-22 | Abrasion-proof bearing liner of four-oil wedge hydraulic turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218164Y true CN201218164Y (en) | 2009-04-08 |
Family
ID=40541001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201217627U Expired - Fee Related CN201218164Y (en) | 2008-07-22 | 2008-07-22 | Abrasion-proof bearing liner of four-oil wedge hydraulic turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218164Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032272A (en) * | 2010-12-07 | 2011-04-27 | 湖南零陵恒远发电设备有限公司 | Bisection four-wedge bush bearing |
| CN104405771A (en) * | 2014-11-29 | 2015-03-11 | 哈尔滨广瀚燃气轮机有限公司 | Novel sectional shaft and pad reversed bearing |
| CN110520640A (en) * | 2017-03-24 | 2019-11-29 | 江森自控科技公司 | Pressure dam bearing |
-
2008
- 2008-07-22 CN CNU2008201217627U patent/CN201218164Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032272A (en) * | 2010-12-07 | 2011-04-27 | 湖南零陵恒远发电设备有限公司 | Bisection four-wedge bush bearing |
| CN104405771A (en) * | 2014-11-29 | 2015-03-11 | 哈尔滨广瀚燃气轮机有限公司 | Novel sectional shaft and pad reversed bearing |
| CN110520640A (en) * | 2017-03-24 | 2019-11-29 | 江森自控科技公司 | Pressure dam bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20110722 |