CN201218163Y - Guide bearing with oil supply by pitot tube - Google Patents
Guide bearing with oil supply by pitot tube Download PDFInfo
- Publication number
- CN201218163Y CN201218163Y CNU2008200877066U CN200820087706U CN201218163Y CN 201218163 Y CN201218163 Y CN 201218163Y CN U2008200877066 U CNU2008200877066 U CN U2008200877066U CN 200820087706 U CN200820087706 U CN 200820087706U CN 201218163 Y CN201218163 Y CN 201218163Y
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- CN
- China
- Prior art keywords
- bearing
- pitot tube
- oil
- bearing shell
- bearing bush
- 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
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- Mounting Of Bearings Or Others (AREA)
- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a pitot-tube oil supply type guide bearing which comprises a bearing body and a bearing bush, wherein an oil chamber is formed in the bearing body which is connected with a rotating oil basin, one end of the bearing bush is fixedly connected on the bearing body, and the other end of the bearing bush is embedded in the rotating oil basin; a pitot tube is arranged between the bearing body and the rotating oil basin and is fixedly connected on the bearing bush through a passed way, one end of the pitot tube is communicated with the oil chamber, the other end of the pitot tube is communicated with the rotating oil basin, and the opening direction of the pitot tube is opposite to the rotation direction of the rotating oil basin; the bearing bush is divided into four sections which are fixedly connected through bolts, and the inner surface of the bearing bush is a smooth annular ring. The utility model has the advantages that the safe and reliable operation of a hydroturbine can be effectively ensured, the structure is simple, and the volume is small; in addition, the bearing bush just can be put into use after being directly installed without the rescraping process, thereby the installation quality contingency can be avoided, and the quality of the bearing can be ensured easily; the volume of an external cooler is small, and the cooling power is large, thereby oil liquid can be effectively cooled.
Description
Technical field
The utility model relates to a kind of guide bearing of vertical water turbine unit.
Background technique
Turbine guide bearing is in order to keeping set main shaft in axial accurate position, and bearing radial force, and can the quality of guide bearing safe and reliable stable operation have important role to the water wheels unit.The pattern of water turbine bearing is a lot, and rubber bush bearing, the thin oil lubricant of the water lubrication of relatively using always have the cartridge type bearing and the thin oil lubricant oil immersed type piecemeal pad bearing of oblique oil groove self-loopa at present.Water lubriucated bearing practice shows that bearing shell and axle journal all have wearing and tearing in various degree, and is stable not as the thin oil lubricant bearing, runout is little, and especially water lubriucated bearing is to the requirements in water quality height, and therefore employing is less at present.The thin oil lubricant bearing is because simple in structure, and therefore layout compactness, reliable, good rigidly have obtained extensive use.The bearing shell of thin oil lubricant solid bowl type bearing adopts Babbitt to cast directly on the bearing support, and bearing support is formed cartridge type by 2～4 lobes; Thin oil lubricant piecemeal watt formula bearing is made up of 8～12 babbit-lined metals, and these two kinds of thin oil lubricant bearings all need scraping bearing shell when building site installation hydraulic generator unit.Scrape in the building site that watt not only working condition is poor, and the quality of scraping watt person's ability directly influence the quality of bearing shell, influence the stability that bearing moves, cause unit vibration or bearing bush temperature to cross high accident.This bearing is had relatively high expectations to the experience and the technical ability of scraping watt person, and because scraping watt person's ability has nothing in common with each other, causes good Yu the bad contingency of Bearing Installation quality very big.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of pitot tube oil feeding type guide bearing, can effectively solve and need the scraping bearing shell when existing thin oil lubricant bearing need be installed the hydraulic generator unit in the building site, and the quality of scraping watt person's ability can directly influence the quality of bearing shell and the stability of bearing operation, causes the very big problem of contingency of installation quality.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of pitot tube oil feeding type guide bearing, comprise bearing support and bearing shell, be formed with oil pocket in the bearing support, it is characterized in that: bearing support connects the rotation oil tray, bearing shell one end is fixedly connected on the bearing support, the bearing shell the other end embeds and rotates in the oil tray, be provided with pitot tube between bearing support and the rotation oil tray, pitot tube fixedly cross-under on bearing shell, pitot tube one end communicates with oil pocket, and the pitot tube the other end communicates with rotating oil tray, and the pitot tube opening is towards opposite with the sense of rotation of rotating oil tray.
Further, bearing support is connected with external cooler, and external cooler inlet connects an end that communicates with oil pocket on the pitot tube, and external cooler outlet communicates with oil pocket.
Further, bearing shell is divided into pintongs, adopts screw to connect between each bearing shell.
Further, inner surface of bearing bush is a smooth torus.
The utility model is owing to adopted technique scheme, can effectively guarantee the safe and reliable operation of water turbine, simple in structure, volume is little, and need not to carry out again can come into operation after the scraping bearing shell directly installs, avoided the contingency of installation quality, bearing quality guarantees easily; External cooler volume is little, and cooling power is big, can effectively cool off fluid.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of a kind of pitot tube oil feeding type of the utility model guide bearing;
Fig. 2 adds the structural representation in man-hour for the utility model intermediate bushing.
Embodiment
As depicted in figs. 1 and 2, be a kind of pitot tube oil feeding type of the utility model guide bearing, comprise bearing support 1 and bearing shell 4, bearing support 1 and bearing shell 4 cross-under are on the main shaft 7 of water turbine, be formed with oil pocket 2 in the bearing support 1, bearing shell 4 is divided into pintongs, adopts screw to connect between each bearing shell 4, bearing shell 4 internal surfaces are smooth torus, the corresponding formation of the external diameter oil-feed gap 8 of the internal diameter of bearing shell 4 and main shaft 7.Bearing support 1 connects rotation oil tray 3, bearing shell 4 one ends are fixedly connected on the bearing support 1, bearing shell 4 the other ends embed and rotate in the oil tray 3, be provided with pitot tube 5 between bearing support 1 and the rotation oil tray 3, pitot tube 5 fixedly cross-under on bearing shell 4, pitot tube 5 one ends communicate with oil pocket 2, and pitot tube 5 the other ends communicate with rotating oil tray 3, and pitot tube 5 openings are towards opposite with the sense of rotation of rotating oil tray 3.Bearing support 1 is connected with external cooler 6, and external cooler 6 imports connect an end that communicates with oil pocket 2 on the pitot tube 5, and external cooler 6 outlets communicate with oil pocket 2, can determine whether to be provided with external cooler 6 according to the different needs of water turbine.
Bearing shell in the utility model can adopt following method to process: according to the parameter of water turbine, determine the gap of bearing shell 4 and main shaft 7 by the bearing computer program; The certain thickness copper sheet 9 of pad on the branch demifacet of each bearing shell 4 uses screw tight then, and the bearing shell 4 interior hole dimensions of determining according to the calculating degree need size can form the parabola tiling bearing shell 4 cars to design again; Unclamp screw after fine finishing is finished copper sheet 9 extractions are re-assemblied and can cooperate with main shaft 7, form wedge shape oil-feed gap 8 between the parabola tiling of bearing shell 4 and the main shaft 7.
The utility model working procedure is as follows: when water turbine rotates, rotation oil tray 3 is followed main shaft 7 and is rotated together, because pitot tube 5 openings are towards opposite with the sense of rotation of rotating oil tray 3, make and rotate the oil tray 3 interior fluid that pressure raises because rotate, in the oil pocket 2 that pitot tube 5 rises and inflow bearing support 1 forms; When external cooler 6 was set, the fluid that rotate in the oil tray 3 were introduced into external cooler 6 along pitot tube 5, flowed into after the cooling by external cooler 6 in the oil pocket 2 that bearing support 1 forms again; Enter fluid in the oil pocket 2 and flow in the wedge gap 8 between bearing shell 4 and the main shaft 7, play effects lubricated and cooling bearing shell 4 temperature, avoid the generation of tile kilning situation, fluid rotates in the oil tray 3 through flowing back into behind the wedge gap 8.
The utility model is simple in structure, volume is little, safe and reliable to operation, and need not to carry out again can come into operation after the scraping bearing shell directly installs, avoided the contingency of installation quality, bearing quality guarantees easily; External cooler volume is little, and cooling power is big, can effectively cool off fluid.
Claims (4)
1, a kind of pitot tube oil feeding type guide bearing, comprise bearing support (1) and bearing shell (4), be formed with oil pocket (2) in the described bearing support (1), it is characterized in that: described bearing support (1) connects rotation oil tray (3), described bearing shell (4) one ends are fixedly connected on the described bearing support (1), bearing shell (4) the other end embeds in the described rotation oil tray (3), be provided with pitot tube (5) between described bearing support (1) and the rotation oil tray (3), pitot tube (5) fixedly cross-under on described bearing shell (4), pitot tube (5) one ends communicate with described oil pocket (2), pitot tube (5) the other end communicates with described rotation oil tray (3), and pitot tube (5) opening is towards opposite with the sense of rotation of described rotation oil tray (3).
2, a kind of pitot tube oil feeding type guide bearing according to claim 1, it is characterized in that: described bearing support (1) is connected with external cooler (6), external cooler (6) import connects described pitot tube (5) and goes up an end that communicates with oil pocket (2), and external cooler (6) outlet communicates with oil pocket (2).
3, a kind of pitot tube oil feeding type guide bearing according to claim 1, it is characterized in that: described bearing shell (4) is divided into pintongs, adopts screw to connect between each described bearing shell (4).
4, according to claim 1 or 3 described a kind of pitot tube oil feeding type guide bearings, it is characterized in that: described bearing shell (4) internal surface is a smooth torus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200877066U CN201218163Y (en) | 2008-05-30 | 2008-05-30 | Guide bearing with oil supply by pitot tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200877066U CN201218163Y (en) | 2008-05-30 | 2008-05-30 | Guide bearing with oil supply by pitot tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218163Y true CN201218163Y (en) | 2009-04-08 |
Family
ID=40541000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200877066U Expired - Fee Related CN201218163Y (en) | 2008-05-30 | 2008-05-30 | Guide bearing with oil supply by pitot tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218163Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275715A (en) * | 2015-11-03 | 2016-01-27 | 天津市天发重型水电设备制造有限公司 | Guide bearing external circulation spraying and cooling structure |
| CN106429255A (en) * | 2016-11-23 | 2017-02-22 | 杭州三螺机械设备有限公司 | Sliding intermediate supporting system for forced-cooling sliding column of spiral ship unloader |
| CN109139396A (en) * | 2018-08-07 | 2019-01-04 | 北京金风科创风电设备有限公司 | Cooling system and cooling method of wind generating set and wind driven generator |
| CN109268661A (en) * | 2018-11-14 | 2019-01-25 | 扬州大学 | Lubricating-oil self-circulating device and its application method in a kind of vertical asynchronous machine upper oil cylinder of large pumping station |
| CN110985867A (en) * | 2019-12-24 | 2020-04-10 | 刘洋 | Self-lubricating system for dam hydroelectric power generation |
-
2008
- 2008-05-30 CN CNU2008200877066U patent/CN201218163Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275715A (en) * | 2015-11-03 | 2016-01-27 | 天津市天发重型水电设备制造有限公司 | Guide bearing external circulation spraying and cooling structure |
| CN106429255A (en) * | 2016-11-23 | 2017-02-22 | 杭州三螺机械设备有限公司 | Sliding intermediate supporting system for forced-cooling sliding column of spiral ship unloader |
| CN109139396A (en) * | 2018-08-07 | 2019-01-04 | 北京金风科创风电设备有限公司 | Cooling system and cooling method of wind generating set and wind driven generator |
| CN109268661A (en) * | 2018-11-14 | 2019-01-25 | 扬州大学 | Lubricating-oil self-circulating device and its application method in a kind of vertical asynchronous machine upper oil cylinder of large pumping station |
| CN110985867A (en) * | 2019-12-24 | 2020-04-10 | 刘洋 | Self-lubricating system for dam hydroelectric power generation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG JINLUN ELECTROMECHANIC CO., LTD. Free format text: NEW ADDRESS: NO.367, JINYUAN ROAD, JINHUA CITY, ZHEJIANG PROVINCE, ZIP CODE:321001 |
|
| CP02 | Change in the address of a patent holder |
Address after: Zhejiang Province, Jinhua City Park Road 367, zip code: 321001 Patentee after: Zhejiang Jinlun Electromechanical Co., Ltd. Address before: No. 998 Jiefang West Road, Zhejiang, Jinhua Province, China: 321001 Patentee before: Zhejiang Jinlun Electromechanical Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20140530 |