CN202055973U - Self-lubricating radial thrust bearing of runner pump - Google Patents
Self-lubricating radial thrust bearing of runner pump Download PDFInfo
- Publication number
- CN202055973U CN202055973U CN2011201100352U CN201120110035U CN202055973U CN 202055973 U CN202055973 U CN 202055973U CN 2011201100352 U CN2011201100352 U CN 2011201100352U CN 201120110035 U CN201120110035 U CN 201120110035U CN 202055973 U CN202055973 U CN 202055973U
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- oil
- deep fat
- radial
- radially
- bearing
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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 self-lubricating radial thrust bearing of a runner pump. An electric pump is arranged outside a bearing seat, an oil inlet joint of the electric pump is connected with a cold oil outlet arranged at the lower portion of the bearing seat, and an oil outlet of the electric pump is communicated with a first oil inlet of a three-way valve through a pipeline. An oil outlet joint of the three-way valve is connected with a cold oil inlet arranged at the upper portion of the bearing seat, and the cold oil inlet is communicated with an annular oil inlet groove arranged on an ex-circle surface of a radial tile. A first radial hole, a radial blind hole and an axial blind hole which are communicated with the annular oil inlet groove are arranged on the radial tile. The self-lubricating radial thrust bearing of the runner pump sends away and cools produced hot oil timely by using centrifugal force produced during rotation of a thrust head, the cooled cold oil is continuously injected into the bearing to meet normal work requirement of the bearing, and accordingly self-lubrication is realized. Therefore, no special oil thinning and lubricating device or pressure pump is needed to be arranged as usual, not only equipment and cost are reduced, but also the oil thinning and lubricating device and occupied space of the pressure pump are eliminated. In addition, the self-lubricating radial thrust bearing of the runner pump is convenient to arrange, good in lubricating and cooling effects, ingenious in design and simple in structure.
Description
Technical field
The utility model belongs to technical field of hydraulic generators, relates in particular to the runner plate pump selflubricating radial-thrust bearing of hydraulic turbine generator.
Background technique
Traditional radial-thrust bearing comprises bearing support and bearing cap, this right side radially watt is along circumferentially being evenly equipped with thrust pad, be installed with thrust collar by flat key behind the endoporus that main shaft passes radially watt, outside at thrust collar is with inner cover, should outer cover be arranged interior outer sleeve, the left end of this outer cover is fixedlyed connected with the right-hand member of described bearing support and bearing cap by screw.Before the radial-thrust bearing work and in the working procedure, need ceaselessly to bearing injection pressure lubricant oil, with to radially watt and the junction plane between the main shaft and the junction plane between thrust collar and the thrust pad be lubricated, prevent tile kilning; Become deep fat behind the pressure cold oil lubricating component,, in time deep fat is seen off again in order to guarantee the proper functioning of bearing.In order to satisfy above-mentioned technical requirements, traditional radial-thrust bearing needs to be equipped with special thin oil lubricating device and pressure pump in the bearing outside, and under the effect of pressure pump, pressure cold oil is ceaselessly by injection bearing by force, the lubricated position that need lubricate, and deep fat is ceaselessly seen off, is cooled off.In daily using process, we find traditional radial-thrust bearing owing to need special thin oil lubricating device and the pressure pump of being equipped with, and so both increased equipment, have increased expense, have taken very big volume again, are not easy to arrange.In addition, the cold oil behind the lubricating component becomes deep fat, need cool off, lower the temperature by oil cooler, and traditional radial-thrust bearing is located at bearing support inside with oil cooler, thereby causes cooling off the poor effect of deep fat, for this reason, needs badly and solves the problems of the technologies described above.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of runner plate pump selflubricating radial-thrust bearing, so that do not need to set specially as before thin oil lubricating device and pressure pump during this bearing working again.
The technical solution of the utility model is as follows: a kind of runner plate pump selflubricating radial-thrust bearing, between bearing support and bearing cap, be fixed with radially watt, this right side radially watt is along circumferentially being evenly equipped with thrust pad, be installed with thrust collar by flat key behind the endoporus that main shaft passes radially watt, outside at thrust collar is with inner cover, should outer cover be arranged interior outer sleeve, its key is: outside described bearing support electric pump is set, the cold oil outlet of the fuel inlet fitting of this electric pump and bearing support bottom is joined, the oil outlet of electric pump communicates with first filler opening of three-way valve by pipeline, the cold oil import on the delivery connection of three-way valve and bearing support top is joined, and this cold oil import communicates with annular oil-feed tank on the described radially watt periphery; Have first radial hole and the radial blind holes that communicates with annular oil-feed tank described on radially watt, wherein be communicated with at the bottom of the hole of radial blind holes with at the bottom of the hole of radially watt going up the axial blind hole left end, in the radially cold oil passage of the right aperture of axial bore between adjacent two thrust pads;
Be provided with the deep fat collector groove of annular at the inner headed face of described thrust collar, on this deep fat collector groove and the thrust collar radially the inner orifice of deep fat via hole be communicated with, radially the outer aperture of deep fat via hole communicates with the annular deep fat passage of inner cover inner headed face, and the space of this annular deep fat passage is along circumferential ascending gradually changing; Offer hot oil outlet on described inner cover, this hot oil outlet is positioned at the large space place of annular deep fat passage, and the deep fat fuel inlet fitting of hot oil outlet and oil cooler joins, and the cold oil outlet of oil cooler is communicated with second filler opening of described three-way valve by pipeline.
Before the work of this radial-thrust bearing, oil hole by the bearing cap top injects cold lubricant oil to bearing cavity earlier, the cold oil that is injected into collects in the collection chamber of bearing support bottom, under the effect of electric pump, cold oil is by the cold oil outlet of bearing support bottom, behind electric pump and the three-way valve, be injected in the cold oil import on bearing support top, the cold oil that is injected into flows in the annular oil-feed tank on watt periphery radially, cold oil is divided into two-way at this and flows: wherein one the tunnel flow to the radially junction plane place between watt endoporus and main shaft along radially watt first radial hole, and this junction plane is lubricated; Other one tunnel radially cold oil channel flow between radially watt radial blind holes, axial blind hole and thrust pad finally flows to the junction plane of thrust pad and thrust collar, and this junction plane is lubricated.Cold oil just becomes deep fat after above-mentioned position is lubricated, and in order to guarantee the proper functioning of bearing, needs in time deep fat is seen off, cooled off, and constantly carries new cold oil to bearing.Radially a watt deep fat of locating to produce is divided into two-part, wherein a part directly flows to the annular deep fat collector groove of thrust collar inner headed face, another part flows in the collection chamber of bearing support bottom, and whole stream of hot oil that thrust bearing shoe valve tile fragment and thrust collar junction plane place produce are to the annular deep fat collector groove of thrust collar inner headed face; When following main axis rotation, thrust collar can produce centrifugal force, under action of centrifugal force, the deep fat at deep fat collector groove place is thrown out of the radially deep fat via hole of thrust collar, be thrown in the annular deep fat passage of inner cover inner headed face, and flow to the hot oil inlet of oil cooler by the deep fat fuel inlet fitting of hot oil outlet on the inner cover and oil cooler, deep fat becomes cold oil after cooling off by oil cooler, be transported in the cold oil import of bearing by the cold oil outlet of oil cooler and second filler opening of three-way valve again, so that ceaselessly inject cold oil, close startup oil pump bearing when lubrication pressure reaches design load and normally move to bearing.Adopt above structure, the centrifugal force that the utility model has produced when having utilized thrust collar to rotate dexterously, under the drive of centrifugal force, in time the deep fat that produces is seen off, cooling, make it to become cold oil, and ceaselessly with in the cold oil injection bearing, satisfy the proper functioning requirement of bearing, so just need not need to set thin oil lubricating device specially more as before and pressure pump removes enforced lubricating, thereby make this bearing have self-lubricating function, both reduced equipment, reduced expense, removed taking up room of oil lubrication device and pressure pump again from, be convenient to arrange, be skillfully constructed, simple in structure, be suitable for the large-scale promotion utilization.
Described oil cooler is positioned at outside the bearing support, after the deep fat fuel inlet fitting of this oil cooler passes through hole on the outer cover, joins with the deep fat oil outlet of described inner cover.Adopt above structure can effectively increase the cooling length of deep fat, so that cool off deep fat better, with respect to traditional built-in structure, cooling effect of the present utility model is more obvious, more can guarantee the normal use of radial-thrust bearing.
Have second radial hole at described right part radially watt, the outer aperture of this second radial hole is connected to one-way valve by the deep fat pipe, and the filler opening of this one-way valve is near the collection chamber of described bearing support bottom.After the deep fat that compiles in the collection chamber is too much, deep fat can be with the ball float jack-up in the one-way valve, and be injected into the annular deep fat collector groove of described thrust collar inner headed face by one-way valve, and deliver in the oil cooler of peripheral hardware, thereby can effectively avoid in the long-pending oil pocket of bearing support bottom, compiling too much deep fat by the radially deep fat via hole of thrust collar.
Described inner cover is a monolithic construction, compares with two traditional lobe formula structures, gently inner cover is pushed when this structure is convenient to assemble on the one hand, prevents that on the other hand the air of outside from entering in the deep fat collector groove of inner cover inner headed face, and then guarantees the seal of oil circuit.
Beneficial effect: the centrifugal force of generation in time the deep fat that produces saw off, cooled off when the utility model rotated by utilizing thrust collar, and with cooled cold oil injection bearing ceaselessly, satisfy the proper functioning requirement of bearing, thereby realization selflubricating, so just need not need to set specially thin oil lubricating device and pressure pump more as before, both reduce equipment, reduced expense, removed taking up room of thin oil lubricating device and pressure pump again from, be convenient to arrange, and lubricated, good cooling results, be skillfully constructed, simple in structure, be suitable for large-scale promotion utilization.
Description of drawings
Fig. 1 is an outline drawing of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 be Fig. 2 B-B to C-C to partly cut open assembled view;
Fig. 4 is that the D-D of Fig. 2 is to sectional view.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Shown in Fig. 1～4, the utility model by bearing support 1, bearing cap 2, radially watts 3, parts such as thrust bearing shoe valve 4, main shaft 5, thrust collar 6, inner cover 7 and outer cover 8 constitute, be connected with radially watts 3 between its bottom bracket 1 and the bearing cap 2, and radially watts 3 fixedly connected with bearing cap 2 with bearing support 1 by screw.In above-mentioned radially watts 3 right side along circumferentially being evenly equipped with polylith thrust pad 4, this thrust pad 4 by screw with radially watts 3 fixedly connected.Described main shaft 5 is installed with thrust collar 6 by flat key after passing radially watts 3 endoporus, is with inner cover 7 in the outside of thrust collar 6, and this inner cover 7 is a monolithic construction.Be with outer cover 8 in the outside of described inner cover 7, this outer cover 8 is structure as a whole, and fixedly connected with the right side of bearing cap 2 with above-mentioned bearing support 1 by screw in the left side of outer cover 8, above-mentioned position component relation and annexation and prior art are identical, neither inventive point of the present utility model, do not do at this and to give unnecessary details.
Shown in Fig. 1～4, as main inventive point of the present utility model, in the outside of described bearing support 1 electric pump 9 is set, the cold oil outlet 1a of the fuel inlet fitting of this electric pump 9 and bearing support 1 bottom joins, the oil outlet of electric pump 9 communicates with first filler opening of three-way valve 10 by pipeline, and the cold oil import 1b on the delivery connection of three-way valve 10 and bearing support 1 top joins.Be provided with annular oil-feed tank 3a on described radially watts 3 periphery, this annular oil-feed tank 3a communicates with the cold oil import 1b on described bearing support 1 top, and cold oil is entered in the annular oil-feed tank 3a by this cold oil import 1b.Part as oil circuit, radially have the first radial hole 3b, radial blind holes 3c, axial blind hole 3d and the second radial hole 3e on watts 3 above-mentioned, wherein the first radial hole 3b opens at watts 3 middle part radially, the outer aperture of this first radial hole 3b is communicated with described annular oil-feed tank 3a, the inner orifice of the first radial hole 3b is communicated with watts 3 endoporus radially, so that a part of cold oil at annular oil-feed tank 3a place flows into radially watts 3 the endoporus and the junction plane of described main shaft 5, thereby this position is lubricated.Above-mentioned radial blind holes 3c opens at watts 3 middle part radially, the outer aperture of this radial blind holes 3c is communicated with described annular oil-feed tank 3a, be communicated with at the bottom of the hole of described axial blind hole 3d left end at the bottom of the hole of radial blind holes 3c the inner, the right-hand member of this axial bore 3d is opened to watts 3 right side radially, and in the radially cold oil passage 14 of the right aperture of axial bore 3d between adjacent two thrust pads 4, cold oil flows to the junction plane place of thrust pad 4 and described thrust collar 6 by this cold oil passage 14, thereby this position is lubricated.
The described second radial hole 3e opens at watts 3 right part radially, the outer aperture of this second radial hole 3e is connected to deep fat pipe 12, the bottom of this deep fat pipe 12 is by the described one-way valve 13 that has been threaded, the filler opening of this one-way valve 13 is near the collection chamber of described bearing support 1 bottom, when the deep fat that compiles in the collection chamber is too much, thereby the ball float 13a of one-way valve 13 come-up is with one-way valve opens.
Shown in Fig. 1～4, after the lubricated position of needs was lubricated, cold oil just became deep fat, in order to guarantee the proper functioning of bearing, needs in time deep fat is seen off, cooled off.Therefore, special inner headed face at described thrust collar 6 is provided with the deep fat collector groove 6a of annular, and deep fat, a part of deep fat of thrust bearing shoe valve 4 places generation and whole deep fats of thrust bearing shoe valve tile fragment and the generation of thrust collar 6 junction plane places too much in the long-pending oil pocket in bearing support 1 bottom compile herein.On thrust collar 6, have radially deep fat via hole 6b, this radially the inner orifice of deep fat via hole 6b be communicated with described deep fat collector groove 6a, radially the outer aperture of deep fat via hole 6b communicates with the annular deep fat passage 7a of inner cover 7 inner headed faces.Follow when thrust collar 6 and can produce centrifugal force when main shaft 5 rotates together, under action of centrifugal force, deep fat is thrown out of radially deep fat via hole 6b, is thrown among the annular deep fat passage 7a.In order to form pressure difference, so that allow flow of hot, the space of described annular deep fat passage 7a is along circumferential ascending gradually changing, as for the sense of rotation decision of the change direction of annular deep fat passage 7a space size by main shaft 5, in the present embodiment, main shaft 5 turns clockwise, and the space size of annular deep fat passage 7a is also along clockwise ascending gradually changing.
Offer hot oil outlet 7b on described inner cover 7, this hot oil outlet 7b is positioned at the large space place of annular deep fat passage 7a, the deep fat fuel inlet fitting 11a of described oil cooler 11, pass the through hole on the outer cover 8 after, 7b joins with this deep fat oil outlet.Above-mentioned oil cooler 11 is an outsourcing piece, and be arranged on outside the bearing support 1, be connected to described deep fat fuel inlet fitting 11a on the inflow pipeline of oil cooler 11, the cold oil outlet 11b of oil cooler 11 is communicated with second filler opening of described three-way valve 10 by pipeline, the deep fat that the utility model is discharged becomes cold oil after cooling off by oil cooler 11, this cold oil is delivered in the utility model by second filler opening of described three-way valve 10 again and is lubricated, all the other structures of the present utility model are same as the prior art, also do not do at this and give unnecessary details.
Two kinds of different flow of lubricants of the utility model work the time can form to, wherein first kind is the flow direction of cold oil, second kind is the flow direction of deep fat.
The flow direction of described cold oil is specially: before the work, flow among the cold oil import 1b on bearing support 1 top from the cold oil of bearing support 1 bottom collection chamber first filler opening by three-way valve 10, when reaching design load, the oil pressure in the bearing closes electric pump, bearing pump oil lubrication voluntarily; In the working procedure, flow among the cold oil import 1b on bearing support 1 top from the cold oil of oil cooler 11 second filler opening by three-way valve 10.Cold oil among the above-mentioned cold oil import 1b flows to the radially annular oil-feed tank 3a of watt 3 peripheries, is divided into two-way at this: the first radial hole 3a on watts 3 of leading up to radially flows to the radially junction plane place of watt 3 endoporus and main shaft 5, and this position is lubricated; Radial blind holes 3c, axial blind hole 3d on watts 3 and the radially cold oil passage 14 between adjacent two thrust pads 4 are flow through radially in another road, flow to the junction plane place of thrust pad 4 and thrust collar 6, and this junction plane is lubricated.
The flow direction of described deep fat is specially: radially the deep fat of the junction plane place of watt 3 endoporus and main shaft 5 generation is divided into two-way: the one tunnel gets back in the collection chamber of bearing support 1 bottom, when the deep fat of bearing support 1 bottom collection chamber is too much, unnecessary part can by one-way valve 13 and radially the second radial hole 3e on watts 3 flow to the annular deep fat collector groove 6a place of thrust collar 6 inner headed faces; Another curb axially directly flows to the annular deep fat collector groove 6a of thrust collar 6 inner headed faces.Whole deep fats that the tile fragment 4c of described thrust bearing shoe valve 4 and thrust collar 6 junction plane places produce directly flow to the annular deep fat collector groove 6a of thrust collar 6 inner headed faces.Under action of centrifugal force, the deep fat at deep fat collector groove 6a place is thrown out of the radially deep fat via hole 6b of thrust collar 6, be thrown among the annular deep fat passage 7a of inner cover 7 inner headed faces, and flow to the hot oil inlet of oil cooler 11 by the deep fat fuel inlet fitting 11a of hot oil outlet 7b on the inner cover 7 and oil cooler 11.
Claims (4)
1. runner plate pump selflubricating radial-thrust bearing, be fixed with radially watt (3) at bearing support (1) and bearing cap (2) combination back annular slab, this radially circumferentially is evenly equipped with thrust pad (4) in the edge, right side of watt (3), main shaft (5) is installed with thrust collar (6) by flat key after passing the endoporus of radially watt (3), be with inner cover (7) in the outside of thrust collar (6), should outer cover (8) be arranged interior outer sleeve, it is characterized in that: electric pump (9) is set outside described bearing support (1), the cold oil outlet (1a) of fuel inlet fitting of this electric pump (9) and bearing support (1) bottom is joined, the oil outlet of electric pump (9) communicates by first filler opening of pipeline with three-way valve (10), the cold oil import (1b) on the delivery connection of three-way valve (10) and bearing support (1) top is joined, and this cold oil import communicates with annular oil-feed tank (3a) on described radially watt (3) periphery; On described radially watt (3), have first radial hole (3b) and the radial blind holes (3c) that communicates with annular oil-feed tank (3a), wherein be communicated with at the bottom of the hole of radial blind holes (3c) with at the bottom of radially watt (3) go up the hole of axial blind hole (3d) left end, the right aperture of axial bore (3d) is arranged in the radially cold oil passage (14) between adjacent two thrust pads (4); Be provided with the deep fat collector groove (6a) of annular at the inner headed face of described thrust collar (6), on this deep fat collector groove (6a) and the thrust collar (6) radially the inner orifice of deep fat via hole (6b) be communicated with, radially the outer aperture of deep fat via hole (6b) communicates with the annular deep fat passage (7a) of inner cover (7) inner headed face, and the space of this annular deep fat passage is along circumferential ascending gradually changing; On described inner cover (7), offer hot oil outlet (7b), this hot oil outlet is positioned at the large space place of annular deep fat passage (7a), and hot oil outlet (7b) joins with the deep fat fuel inlet fitting (11a) of oil cooler (11), and the cold oil outlet (11b) of oil cooler (11) is communicated with by second filler opening of pipeline with described three-way valve (10).
2. runner plate pump selflubricating radial-thrust bearing according to claim 1, it is characterized in that: described oil cooler (11) is positioned at outside the bearing support (1), after the deep fat fuel inlet fitting (11a) of this oil cooler (11) passes through hole on the outer cover (8), join with the deep fat oil outlet (7b) of described inner cover (7).
3. runner plate pump selflubricating radial-thrust bearing according to claim 1, it is characterized in that: have second radial hole (3e) at the described radially right part of watt (3), the outer aperture of this second radial hole (3e) is connected to one-way valve (13) by deep fat pipe (12), and the filler opening of this one-way valve (13) is near the collection chamber of described bearing support (1) bottom.
4. runner plate pump selflubricating radial-thrust bearing according to claim 1 is characterized in that: described inner cover (7) is a monolithic construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201100352U CN202055973U (en) | 2011-04-15 | 2011-04-15 | Self-lubricating radial thrust bearing of runner pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201100352U CN202055973U (en) | 2011-04-15 | 2011-04-15 | Self-lubricating radial thrust bearing of runner pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202055973U true CN202055973U (en) | 2011-11-30 |
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ID=45015945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201100352U Expired - Lifetime CN202055973U (en) | 2011-04-15 | 2011-04-15 | Self-lubricating radial thrust bearing of runner pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202055973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230441A (en) * | 2011-04-15 | 2011-11-02 | 重庆云河水电股份有限公司 | Runner-plate pump self-lubricating radial thrust bearing |
| CN106402170A (en) * | 2015-11-20 | 2017-02-15 | 上海犋马石油技术服务有限公司 | Double-thrust-bearing device for motor protector of electric submersible pump unit |
-
2011
- 2011-04-15 CN CN2011201100352U patent/CN202055973U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230441A (en) * | 2011-04-15 | 2011-11-02 | 重庆云河水电股份有限公司 | Runner-plate pump self-lubricating radial thrust bearing |
| CN102230441B (en) * | 2011-04-15 | 2012-10-17 | 重庆云河水电股份有限公司 | Runner-plate pump self-lubricating radial thrust bearing |
| CN106402170A (en) * | 2015-11-20 | 2017-02-15 | 上海犋马石油技术服务有限公司 | Double-thrust-bearing device for motor protector of electric submersible pump unit |
| CN106402170B (en) * | 2015-11-20 | 2018-05-01 | 上海犋马石油技术服务有限公司 | The double thrust bearing device of electric submersible pump unit motor protecter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111130 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |