CN201502631U - Water lubrication rubber bearing bush capable of adjusting gap between bearing bush and bearing journal - Google Patents
Water lubrication rubber bearing bush capable of adjusting gap between bearing bush and bearing journal Download PDFInfo
- Publication number
- CN201502631U CN201502631U CN2009201857204U CN200920185720U CN201502631U CN 201502631 U CN201502631 U CN 201502631U CN 2009201857204 U CN2009201857204 U CN 2009201857204U CN 200920185720 U CN200920185720 U CN 200920185720U CN 201502631 U CN201502631 U CN 201502631U
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- China
- Prior art keywords
- bearing bush
- rubber bearing
- water
- bearing shell
- gap
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- 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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- Hydraulic Turbines (AREA)
- Support Of The Bearing (AREA)
Abstract
The utility model relates to a water lubrication rubber bearing bush capable of adjusting a gap between the bearing bush and a bearing journal, which belongs to the technical field of mechanical drive. The rubber guide bearing bush comprises two to eight water lubrication rubber bearing bush blocks (1) ,the gap (5) between the water lubrication rubber bearing bush blocks (1) is of 2-8 mm. The water lubrication rubber bearing bush blocks forming the rubber guide bearing bush can be separated singly, or rubber connecting parts of 2-5 mm can be arranged on the outer circumferential surfaces of the gaps between the blocks. The water lubrication rubber bearing bush is suitable for rotating machinery operated in water for a long term, especially for the main shafts of water turbines.
Description
Technical field
The utility model relates to the water lubricating rubber bearing shell in gap between a kind of can regulate and the axle journal, belongs to the mechanical transmissioning technology field.
Background technique
Long-term rotating machinery of in water, working, as the axial flow water turbine, its main transmission section is worked under water, owing to be difficult to realize the sealing of bearing, can't adopt grease lubricating bearing or oil-lubricated bearing, so the water turbine main drive shaft adopts water lubricating rubber bearing shell structure usually, rely on the main shaft high speed rotating to make the water between water lubricating rubber bearing shell working surface and the main journal on water lubricating rubber bearing shell working surface, form the water lubrication film, play supports main shaft and reduce main journal and the rubber bearing bush working surface between the effect that rubs, also can limit the distortion of main shaft effectively and rock.For a long time, the water lubricating rubber bearing shell structure that overwhelming majority water turbine adopts all is a monolithic construction, though this structure can form the water lubrication film with certain rigidity when beginning on water lubricating rubber bearing shell working surface, but after water turbine work a period of time, the continuous wearing and tearing of main journal and rubber bearing bush working surface will make the gap between rubber bearing bush working surface and the main journal constantly enlarge, the film formed condition of water lubrication also runs down, can't form until the water lubrication film, this will make further aggravation of wearing and tearing, cause the water turbine cisco unity malfunction, transmission efficiency and working efficiency all descend significantly.When finding that transmission efficiency and working efficiency obviously descend is because during excesssive gap between rubber bearing bush working surface and the main journal; adopt the water turbine of integrated type water lubricating rubber bearing shell structure to carry out integral demounting with regard to shutting down; again change the bush seat assembly that the water lubricating rubber bearing shell is housed; the generation outage of during shutdown maintenance, having to; each change integrated type water lubricating rubber bearing shell all be equivalent to an overhaul or in repair; big, the consuming time length of workload, maintenance expenses height have increased the operating cost in power station.
Summary of the invention
The purpose of this utility model is, in order to solve the difficult problem that causes changing accessory because of the rubber bearing bush wearing and tearing, design a kind of rubber guide bearing block and journal wear seriously, the timely rubber bearing bush new structure of adjusting play during the two excesssive gap.
The utility model is achieved through the following technical solutions:
Traditional rubber guide bearing block is an annular, as shown in Figure 3.The utility model changes traditional integrated type water lubricating rubber bearing shell into the polylith of certain adjusting play water lubricating rubber bearing shell piece each other, be about to the ring-shaped rubber guide bearing block by axially evenly being divided into polylith, leave certain interval between piece and the piece, every water lubricating rubber bearing shell piece all can move in the corresponding guiding groove on bush seat, and make each water lubricating rubber bearing shell piece just can be separately implemented at the bush seat central direction by the screw drive that is arranged on the bush seat, negative displacement, thus according to the abrasion condition of rubber bearing bush and main journal each water lubricating rubber bearing shell is adjusted easily.
The water lubricating rubber bearing shell in gap between a kind of can regulate of the utility model and the axle journal, form by 2-8 piece water lubricating rubber bearing shell piece, when the gap between piece and the piece is 2mm-8mm, a plurality of water lubricating rubber bearing shell pieces can be formed one and be equivalent to integrally-built water lubricating rubber bearing shell, every water lubricating rubber bearing shell piece all embeds respectively on the water lubricating rubber bearing shell lining of steel, water lubricating rubber bearing shell piece inner peripheral surface is provided with axial half slot, and the half slot radius is 3mm-12mm.
Water lubricating rubber bearing shell lining is under the drive of adjusting screw rod, move in the corresponding guiding groove on the bush seat vertical with main shaft, water lubricating rubber bearing shell lining drives split type water lubricating rubber bearing shell piece and moves, to remedy the gap that the bearing shell that is worn stays, realize the radially adjustment of rubber bearing bush.
The water lubricating rubber bearing shell piece of forming adjustable rubber guide bearing block, can be to separate separately, also can be that part is separated, promptly the outer peripheral surface in gap leaves the rubber joint of 2-5mm between piece and piece, and two kinds of structural types can reach the purpose of regulating the rubber bearing bush gap.
The utility model beneficial effect compared with prior art is, after hydraulic turbine main shaft adopts split type water lubricating rubber guide bearing block, can in time regulate the gap between bearing shell and the axle, make on the one hand the center of water lubricating rubber bearing shell working surface of the new formation that each water lubricating rubber bearing shell forms after adjustment concentric with the alignment of shafts, main is to make the gap between bearing shell and the main journal remain on optimum Working, help reducing main shaft at work rock and rubber bearing bush and main journal between friction, improve transmission efficiency and water turbine working life, also greatly reduced the operating cost in power station simultaneously.
The utility model is suitable for the rotating machinery of working for a long time in water, be particularly useful for hydraulic turbine main shaft and use.
Description of drawings
Fig. 1 is the utility model embodiment 1 separated type water lubrication bearing shell structural front view
Fig. 2 is the utility model embodiment 1 separated type water lubrication bearing shell structure right elevation
Fig. 3 is the utility model embodiment 2 part separated type water lubrication bearing shell structural drawing
Fig. 4 is the utility model embodiment 2 part separated type water lubrication bearing shell structure A-A views
Fig. 5 is a traditional integral formula rubber guide bearing block structural front view
Fig. 6 is a traditional integral formula rubber guide bearing block structure right elevation
Embodiment
The utility model embodiment 1 as shown in Figure 1.The water lubricating rubber bearing shell in gap is made up of three water lubricating rubber bearing shell pieces (1) that separate fully between this can regulate and the axle journal, and water lubricating rubber bearing shell piece inner peripheral surface (3) is provided with axial half slot (2), and the half slot radius is 3mm-12mm; Three water lubricating rubber bearing shell pieces are 120 ° of distributions, and when gap between piece and the piece (5) were 4mm, three bearing shells were formed one and are equivalent to the integrated type water lubricating rubber bearing shell that internal diameter is 202mm.Every water lubricating rubber bearing shell piece outer peripheral surface (4) embeds respectively and is being pressed into by the 45# forging on the rubber bearing bush lining of shape, under the promotion that is arranged on the adjustment bolt on the rubber bearing bush seat, the rubber bearing bush lining that has water lubricating rubber bearing shell piece can move in the guiding groove on bush seat, realizes the radially adjustment of rubber bearing bush.
The utility model embodiment 2 as shown in Figure 2.The water lubricating rubber bearing shell piece (1) that the water lubricating rubber bearing shell in gap is separated by three parts between this can regulate and the axle journal is formed, between water lubricating rubber bearing shell piece outer peripheral surface (4) piece and piece, locate, leave the phase company headquarters (6) of 4mm width, before installation, cut a place phase company headquarters, bonding cutting section again during installation, make it to become an integrated type, water lubricating rubber bearing shell piece inner peripheral surface is provided with axial half slot (2), and the half slot radius is 3mm-12mm; Three water lubricating rubber bearing shell pieces are 120 ° of distributions, and when gap between piece and the piece (5) were 4mm, three water lubricating rubber bearing shell pieces were formed the integrated type water lubricating rubber bearing shell that internal diameter is 172mm.Every water lubricating rubber bearing shell piece outer peripheral surface (4) embeds respectively and is being pressed into by the 45# forging on the rubber bearing bush lining of shape, under the promotion that is arranged on the adjustment bolt on the rubber bearing bush seat, the rubber bearing bush lining that has water lubricating rubber bearing shell piece can move in the guiding groove on bush seat, realizes the radially adjustment of rubber bearing bush.
Claims (3)
1. the rubber guide bearing block in gap between can regulate and the axle journal is characterized in that the rubber guide bearing block in gap is made up of 2-8 piece water lubricating rubber bearing shell piece between described can regulate and the axle journal, and the gap between the water lubricating rubber bearing shell piece is 2mm-8mm.
2. the rubber guide bearing block in gap between a kind of can regulate according to claim 1 and the axle journal, it is characterized in that, the water lubricating rubber bearing shell piece of the rubber guide bearing block in gap between described composition can regulate and the axle journal, can be to separate separately, also can be between piece and piece the outer peripheral surface in gap the rubber joint of 2-5mm is arranged.
3. the rubber guide bearing block in gap is characterized in that between a kind of can regulate according to claim 1 and the axle journal, and described water lubricating rubber bearing shell piece inner peripheral surface is provided with axial half slot, and the half slot radius is 3mm-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201857204U CN201502631U (en) | 2009-07-07 | 2009-07-07 | Water lubrication rubber bearing bush capable of adjusting gap between bearing bush and bearing journal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201857204U CN201502631U (en) | 2009-07-07 | 2009-07-07 | Water lubrication rubber bearing bush capable of adjusting gap between bearing bush and bearing journal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502631U true CN201502631U (en) | 2010-06-09 |
Family
ID=42453564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201857204U Expired - Fee Related CN201502631U (en) | 2009-07-07 | 2009-07-07 | Water lubrication rubber bearing bush capable of adjusting gap between bearing bush and bearing journal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2009
- 2009-07-07 CN CN2009201857204U patent/CN201502631U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20170707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |