CN204163918U - A kind of guide bearing being applicable to hydraulic turbine generator - Google Patents
A kind of guide bearing being applicable to hydraulic turbine generator Download PDFInfo
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- CN204163918U CN204163918U CN201420507638.XU CN201420507638U CN204163918U CN 204163918 U CN204163918 U CN 204163918U CN 201420507638 U CN201420507638 U CN 201420507638U CN 204163918 U CN204163918 U CN 204163918U
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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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Abstract
The utility model discloses a kind of guide bearing being applicable to hydraulic turbine generator, comprise multiple blocking type bearing liner body coordinated with rotating shaft, bearing liner body twisted rotary shaft, base, rear end and the rotating shaft of the lastblock bearing liner body of arbitrary neighborhood form fuel-displaced limit, base, front end and the rotating shaft of next block bearing liner body form oil inlet side, it is characterized in that: described bearing liner body front end side has chamfering or fillet, and described chamfering or fillet are positioned at bearing liner body one end away from rotating shaft.The utility model is by changing the structure of bearing liner body, during fluid directive bearing liner body side, bearing liner body side reduces the obstruction of fluid, fluid flows to more level and smooth, thus reduce fluid loss, make to lubricate between bearing liner body and rotating shaft well, ensure the operation of hydraulic turbine generator normal table.
Description
Technical field
The utility model relates to technical field of hydraulic generators, particularly relates to a kind of guide bearing being applicable to hydraulic turbine generator.
Background technique
Hydraulic turbine generator is made up of critical pieces such as rotor, stator, frame, thrust-bearing, guide bearing, cooler, breaks.Stator is primarily of parts compositions such as support, iron core and windings.Stator iron core cold-reduced silicon sheet builds up, and can do integrally and splitted structure by manufacture and traffic condition.Cooling Ways of Hydro-generator generally adopts sealing and circulating Air flow.The mounting structure form of hydraulic turbine generator is determined by the pattern of water turbine usually.Mainly contain two profiles formula: horizontal type structure and vertical structure.Usual small capacity hydraulic turbine generator adopts horizontal type structure, and medium-sized hydraulic turbine generator adopts vertical or horizontal type structure, and large capacity hydroelectric generator adopts vertical structure.The turbine-generator units application of vertical structure is comparatively extensive, and vertical hydropower generator is driven by mixed-flow or axial flow hydraulic turbine usually.Vertical structure can be divided into suspension type and umbrella-type again.What generator thrust bearing was positioned at rotor top is referred to as suspension type, and what be positioned at rotor bottom is referred to as umbrella-type.Water turbine set adopts two or three bearings usually.Its axial length of the structure of two bearings is short, compact structure, and mounting and adjusting is convenient.But when its combined critical speed can not meet the demands or bearing load is larger, this needs employing three bearing structure.
Often can use guide bearing in hydraulic turbine generator, guide bearing is a kind of radial mechanical imbalance power for bearing eccentric magnetic pull and unit rotating part, makes the component that unit axis swings within the scope of specified value.
In hydraulic turbine generator, general employing blocking type multipart bearing watt, when unit operation, requires the oil film lubricate that one deck is very thin between bearing liner and rotating shaft.If insufficient lubrication, just there is directly friction between bearing liner and rotating shaft, friction can produce very high temperature, although bearing liner is made up of special High-temperature resistant alloy material, the high temperature that generation direct friction produces still is enough to be burnt out.In prior art, fluid rotates along with rotating shaft and rotates, and enters the oil inlet side of next block bearing liner, the side of next block bearing liner of another part directive in cohesion and centrifugal action next part, and fluid produces at the side of bearing liner and clashes into, and loss is serious.
Publication number is CN 202732732U, publication date is that the Chinese patent literature of on 02 13rd, 2013 discloses a kind of water cooling guide bearing, comprise upper bearing (metal) watt body and lower bearing watt body, fixed by link between upper bearing (metal) watt body and lower bearing watt body, it is characterized in that the internal surface of described upper bearing (metal) watt body and lower bearing watt body is provided with alloy internal layer, the inside of lower bearing watt body is provided with the water circulation road of " S " type, the two ends on water circulation road connect intake-outlet respectively, and two intake-outlets are located at the both sides of lower bearing watt body respectively.
Guide bearing disclosed in this patent documentation, although heat exchange can be carried out to lower bearing watt body by the water circulation road arranging " S " type in the inside of lower bearing watt body, but upper bearing (metal) watt body temperature is still higher, can not lower the temperature to guide bearing on the whole, in addition guide bearing structural design is unreasonable, when cooling with fluid, fluid can produce at the side of next block bearing liner and clash into, fluid loss is serious, cause insufficient lubrication between bearing liner and rotating shaft, affect the normal operation of hydraulic turbine generator.
Model utility content
For solving the problems of the technologies described above, the utility model proposes a kind of guide bearing being applicable to hydraulic turbine generator, the utility model is by changing the structure of bearing liner body, during fluid directive bearing liner body side, bearing liner body side reduces the obstruction of fluid, and fluid flows to more level and smooth, thus reduces fluid loss, make to lubricate between bearing liner body and rotating shaft well, ensure the operation of hydraulic turbine generator normal table.
The technical solution adopted in the utility model is:
A kind of guide bearing being applicable to hydraulic turbine generator, comprise multiple blocking type bearing liner body coordinated with rotating shaft, bearing liner body twisted rotary shaft, base, rear end and the rotating shaft of the lastblock bearing liner body of arbitrary neighborhood form fuel-displaced limit, base, front end and the rotating shaft of next block bearing liner body form oil inlet side, it is characterized in that: described bearing liner body front end side has chamfering or fillet, and described chamfering or fillet are positioned at bearing liner body one end away from rotating shaft.
The angle of described chamfering is 30-60 degree.
Described chamfering or fillet occupy the area of side 1/5-3/5.
Described bearing liner body rear end side has chamfering or fillet, and chamfering or fillet are positioned at bearing liner body one end away from rotating shaft.
Chamfering on the side of described bearing liner body rear end and the symmetry of the chamfering on the side of bearing liner body front end.
The beneficial effects of the utility model are mainly manifested in the following aspects:
One, the utility model, bearing liner body front end side has chamfering or fillet, chamfering or fillet are positioned at bearing liner body one end away from rotating shaft, according to fluid mechanics principle, during fluid directive bearing liner body side, fluid directional smoothing changes, bearing liner body side reduces the obstruction of fluid, and fluid flows to more level and smooth, thus decreases the shock loss of fluid, make there is more oil lubrication between bearing liner body and rotating shaft, ensure the operation of hydraulic turbine generator normal table.
Two, the angle of chamfering is 30-60 degree, adopts the specific angle of 30-60 degree, and it is minimum that fluid clashes into loss, can make there is sufficient oil lubrication between bearing liner body and rotating shaft, and lubrication effect is best.
Three, chamfering or fillet occupy the area of side 1/5-3/5, adopt the specific area accounting of 1/5-3/5, fluid can be made to flow to more smooth-going, reduce the shock loss of fluid further, ensure good lubrication effect.
Four, bearing liner body rear end side has chamfering or fillet, chamfering or fillet are positioned at bearing liner body one end away from rotating shaft, the fluid thrown away from the chamfering the side of bearing liner body front end or fillet can be transitioned on bearing liner body rear end side chamfering or fillet, thus enter the utilization of next bearing liner bulk circulation, effectively reduce the shock loss of fluid.
Five, the chamfering on the chamfering on the side of bearing liner body rear end and bearing liner body front end side is symmetrical, adopt the structure be arranged symmetrically with, the fluid thrown away from the chamfering the side of bearing liner body front end can maximizedly be transitioned in the side chamfering of bearing liner body rear end, fluid after shock is fully utilized, thus the shock loss of maximized minimizing fluid, ensure lubrication effect, hydraulic turbine generator is run more stable.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model embodiment 2 bearing liner body chamfering structure schematic diagram;
Fig. 3 is the utility model embodiment 3 bearing liner body fillet structure schematic diagram;
Fig. 4 is the structural representation of the utility model embodiment 4;
Mark in figure: 1, rotating shaft, 2, bearing liner body, 3, fuel-displaced limit, 4, oil inlet side, 5, chamfering, 6, fillet.
Embodiment
Embodiment 1
A kind of guide bearing being applicable to hydraulic turbine generator, comprise multiple blocking type bearing liner body 2 coordinated with rotating shaft 1, bearing liner body 2 twisted rotary shaft 1, base, rear end and the rotating shaft 1 of the lastblock bearing liner body 2 of arbitrary neighborhood form fuel-displaced limit 3, base, front end and the rotating shaft 1 of next block bearing liner body 2 form oil inlet side 4, described bearing liner body 2 front end side has chamfering 5 or fillet 6, and described chamfering 5 or fillet 6 are positioned at bearing liner body 2 one end away from rotating shaft 1.
The present embodiment is the most basic mode of execution, structure is simple, according to fluid mechanics principle, during fluid directive bearing liner body 2 side, fluid directional smoothing changes, and bearing liner body 2 side reduces the obstruction of fluid, fluid flows to more level and smooth, thus decrease the shock loss of fluid, make there is more oil lubrication between bearing liner body 2 and rotating shaft 1, ensure the operation of hydraulic turbine generator normal table.
Embodiment 2
A kind of guide bearing being applicable to hydraulic turbine generator, comprise multiple blocking type bearing liner body 2 coordinated with rotating shaft 1, bearing liner body 2 twisted rotary shaft 1, base, rear end and the rotating shaft 1 of the lastblock bearing liner body 2 of arbitrary neighborhood form fuel-displaced limit 3, base, front end and the rotating shaft 1 of next block bearing liner body 2 form oil inlet side 4, described bearing liner body 2 front end side has chamfering 5 or fillet 6, and described chamfering 5 or fillet 6 are positioned at bearing liner body 2 one end away from rotating shaft 1.
The angle of described chamfering 5 is 30-60 degree.
The present embodiment is a better embodiment, adopts the specific angle of 30-60 degree, and it is minimum that fluid clashes into loss, can make there is sufficient oil lubrication between bearing liner body 2 and rotating shaft 1, and lubrication effect is best.
Embodiment 3
A kind of guide bearing being applicable to hydraulic turbine generator, comprise multiple blocking type bearing liner body 2 coordinated with rotating shaft 1, bearing liner body 2 twisted rotary shaft 1, base, rear end and the rotating shaft 1 of the lastblock bearing liner body 2 of arbitrary neighborhood form fuel-displaced limit 3, base, front end and the rotating shaft 1 of next block bearing liner body 2 form oil inlet side 4, described bearing liner body 2 front end side has chamfering 5 or fillet 6, and described chamfering 5 or fillet 6 are positioned at bearing liner body 2 one end away from rotating shaft 1.
The angle of described chamfering 5 is 30-60 degree.
Described chamfering 5 or fillet 6 occupy the area of side 1/5-3/5.
The present embodiment is another better embodiment, adopts the specific area accounting of 1/5-3/5, fluid can be made to flow to more smooth-going, reduces the shock loss of fluid further, ensures good lubrication effect.
Embodiment 4
A kind of guide bearing being applicable to hydraulic turbine generator, comprise multiple blocking type bearing liner body 2 coordinated with rotating shaft 1, bearing liner body 2 twisted rotary shaft 1, base, rear end and the rotating shaft 1 of the lastblock bearing liner body 2 of arbitrary neighborhood form fuel-displaced limit 3, base, front end and the rotating shaft 1 of next block bearing liner body 2 form oil inlet side 4, described bearing liner body 2 front end side has chamfering 5 or fillet 6, and described chamfering 5 or fillet 6 are positioned at bearing liner body 2 one end away from rotating shaft 1.
The angle of described chamfering 5 is 30-60 degree.
Described chamfering 5 or fillet 6 occupy the area of side 1/5-3/5.
Described bearing liner body 2 rear end side has chamfering 5 or fillet 6, and chamfering 5 or fillet 6 are positioned at bearing liner body 2 one end away from rotating shaft 1.Chamfering 5 on the side of described bearing liner body 2 rear end is symmetrical with the chamfering 5 on the side of bearing liner body 2 front end.
The present embodiment is preferred forms, adopt the structure be arranged symmetrically with, the fluid thrown away from the chamfering the side of bearing liner body 2 front end can maximizedly be transitioned in the side chamfering of bearing liner body 2 rear end, fluid after shock is fully utilized, thus the shock loss of maximized minimizing fluid, ensure lubrication effect, hydraulic turbine generator is run more stable.
The utility model is not limited to above-described embodiment, and according to the description of above-described embodiment, those of ordinary skill in the art also can make some apparent changes to the utility model, but these changes all should fall within the protection domain of the utility model claim.
Claims (5)
1. one kind is applicable to the guide bearing of hydraulic turbine generator, comprise multiple blocking type bearing liner body (2) coordinated with rotating shaft (1), bearing liner body (2) twisted rotary shaft (1), base, rear end and the rotating shaft (1) of the lastblock bearing liner body (2) of arbitrary neighborhood form fuel-displaced limit (3), base, front end and the rotating shaft (1) of next block bearing liner body (2) form oil inlet side (4), it is characterized in that: described bearing liner body (2) front end side has chamfering (5) or fillet (6), described chamfering (5) or fillet (6) are positioned at bearing liner body (2) one end away from rotating shaft (1).
2. a kind of guide bearing being applicable to hydraulic turbine generator according to claim 1, is characterized in that: the angle of described chamfering (5) is 30-60 degree.
3. a kind of guide bearing being applicable to hydraulic turbine generator according to claim 1 or 2, is characterized in that: described chamfering (5) or fillet (6) occupy the area of side 1/5-3/5.
4. a kind of guide bearing being applicable to hydraulic turbine generator according to claim 3, it is characterized in that: described bearing liner body (2) rear end side has chamfering (5) or fillet (6), and chamfering (5) or fillet (6) are positioned at bearing liner body (2) one end away from rotating shaft (1).
5. a kind of guide bearing being applicable to hydraulic turbine generator according to claim 4, is characterized in that: the chamfering (5) on the side of described bearing liner body (2) rear end is symmetrical with the chamfering (5) on the side of bearing liner body (2) front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507638.XU CN204163918U (en) | 2014-09-04 | 2014-09-04 | A kind of guide bearing being applicable to hydraulic turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507638.XU CN204163918U (en) | 2014-09-04 | 2014-09-04 | A kind of guide bearing being applicable to hydraulic turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204163918U true CN204163918U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420507638.XU Active CN204163918U (en) | 2014-09-04 | 2014-09-04 | A kind of guide bearing being applicable to hydraulic turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204163918U (en) |
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2014
- 2014-09-04 CN CN201420507638.XU patent/CN204163918U/en active Active
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