CN108266304B - A kind of tubular turbine guide bearing structure - Google Patents
A kind of tubular turbine guide bearing structure Download PDFInfo
- Publication number
- CN108266304B CN108266304B CN201810073678.0A CN201810073678A CN108266304B CN 108266304 B CN108266304 B CN 108266304B CN 201810073678 A CN201810073678 A CN 201810073678A CN 108266304 B CN108266304 B CN 108266304B
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- CN
- China
- Prior art keywords
- seal ring
- oil seal
- main shaft
- side oil
- downstream side
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/06—Bearing arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/006—Sealing arrangements
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of tubular turbine guide bearing structures, bearing body including being socketed in hydraulic turbine main shaft periphery, the hydraulic turbine main shaft can be freely rotated relative to bearing body, the upstream side of the bearing arrangement is provided with drive end bearing bracket and upstream side oil seal ring, the downstream side of the bearing arrangement is provided with rear end cap and downstream side oil seal ring, the drive end bearing bracket and rear end cap are respectively together in bearing body end.The present invention on main shaft by being arranged the annular groove with oil seal ring corresponding matching, using bolt by the oil seal ring of segmentation tightly in the annular groove of main shaft, the existing single-point fixed form using pin is replaced with the extruding contacted using face to be locked mode, while effectively improving fixed reliability, the overall tightness between oil seal ring and main shaft is also improved, to ensure that the security and stability of unit operation.
Description
Technical field
The invention belongs to hydro-electric power generating equipment technical field, more particularly to a kind of tubular turbine guide bearing structure.
Background technology
In existing tubular turbine guide bearing structure, it is cyclic structure that the oil seal ring in bearing body upstream and downstream side, which is arranged,
And be fixed by a pin on hydraulic turbine main shaft, which is unfavorable for the overall tightness between oil seal ring and main shaft, and
And unit is in the process of running, since oil seal ring is rotated synchronously with main shaft, long-play can cause pin connection to loosen,
Influence the normal operation of unit.
Invention content
It is an object of the invention to：In view of the above problems, providing one kind can ensure that oil seal ring is securely fixed
On main shaft, ensure the tubular turbine guide bearing structure of unit operation stability.
The technical proposal of the invention is realized in this way：A kind of tubular turbine guide bearing structure, including it is socketed in water
The bearing body of turbine main shaft periphery, the hydraulic turbine main shaft can be freely rotated relative to bearing body, in the bearing arrangement
Upstream side is provided with drive end bearing bracket and upstream side oil seal ring, and the downstream side of the bearing arrangement is provided with rear end cap and downstream
Side seal oil ring, the drive end bearing bracket and rear end cap are respectively together in bearing body end, it is characterised in that：The upstream side oil seal ring and
Downstream side oil seal ring is divided at least two valves respectively, is provided with and upstream side oil seal ring and downstream in the hydraulic turbine main shaft periphery
The annular groove of side seal oil ring corresponding matching, the upstream side oil seal ring and downstream side oil seal ring are respectively arranged in corresponding annular groove, and
Oil seal ring divides valve face using bolt closing, by upstream side oil seal ring and downstream side oil seal ring fastening in hydraulic turbine main shaft
In annular groove, seal member is provided between the hydraulic turbine main shaft and corresponding oil seal ring.
Tubular turbine guide bearing structure of the present invention, the upstream side oil seal ring and downstream side oil seal ring
Internal diameter is less than the diameter of annular groove on hydraulic turbine main shaft, and there are certain intervals after closing, dividing between valve face for adjacent two valves oil seal ring.
Tubular turbine guide bearing structure of the present invention, the diameter of annular groove compares oil sealing on the hydraulic turbine main shaft
Big 0.15mm~the 0.30mm of internal diameter of ring.
Tubular turbine guide bearing structure of the present invention, the shape between dividing valve face of the adjacent two valves oil seal ring
At gap be equal.
Tubular turbine guide bearing structure of the present invention, the seal member is by least one layer of rubber seal
Composition, the rubber seal between the upstream side oil seal ring and hydraulic turbine main shaft are arranged in the position for being relatively distant from drive end bearing bracket
Place, the rubber seal between the downstream side oil seal ring and hydraulic turbine main shaft, which is arranged, to be relatively distant from the position of rear end cap.
Tubular turbine guide bearing structure of the present invention, in the upstream side oil seal ring and downstream side oil seal ring
Inner side end on be provided with installation annular groove, the rubber seal is separately positioned on upstream side oil seal ring and downstream side oil seal ring
Installation annular groove in.
Tubular turbine guide bearing structure of the present invention, the drive end bearing bracket and rear end cap are divided at least respectively
Two valves divide valve face to be coated with sealant, and conjunction are fixed together by bolt in the drive end bearing bracket and rear end cap.
The ring with oil seal ring corresponding matching is arranged by the way that oil seal ring is designed as segmentation structure in the present invention on main shaft
The existing single-point fixed form using pin is replaced the oil seal ring of segmentation tightly in the annular groove of main shaft using bolt by slot
To also improve oil seal ring and master while effectively improving fixed reliability using the extruding mode that is locked of face contact
Overall tightness between axis, to ensure that the security and stability of unit operation.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the portions A enlarged drawing in Fig. 1.
Fig. 3 is the portions B enlarged drawing in Fig. 1.
It is marked in figure：1 is hydraulic turbine main shaft, and 2 be bearing body, and 3 be drive end bearing bracket, and 4 be upstream side oil seal ring, and 5 be rear end cap,
6 be downstream side oil seal ring, and 7 be annular groove, and 8 be rubber seal.
Specific implementation mode
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1,2 and 3, a kind of tubular turbine guide bearing structure, including it is socketed in 1 periphery of hydraulic turbine main shaft
Bearing body 2, the hydraulic turbine main shaft 1 can be freely rotated relative to bearing body 2, be provided in the upstream side of the bearing arrangement
Drive end bearing bracket 3 and upstream side oil seal ring 4 are provided with rear end cap 5 and downstream side oil seal ring in the downstream side of the bearing arrangement
6, the drive end bearing bracket 3 and rear end cap 5 respectively together in 2 end of bearing body, the drive end bearing bracket 3 and rear end cap 5 be divided into respectively to
Few two valves divide valve face to be coated with sealant, and conjunction are fixed together by bolt in the drive end bearing bracket 3 and rear end cap 5；Institute
It states upstream side oil seal ring 4 and downstream side oil seal ring 6 is divided at least two valves respectively, be provided in 1 periphery of the hydraulic turbine main shaft
With the annular groove 7 of 6 corresponding matching of upstream side oil seal ring 4 and downstream side oil seal ring, the upstream side oil seal ring 4 and downstream side oil seal ring
6 are respectively arranged in corresponding annular groove 7, and oil seal ring divide valve face using bolt close, by upstream side oil seal ring 4 and downstream side seal
Oil ring 6 fastens in the annular groove 7 of hydraulic turbine main shaft 1, is provided between the hydraulic turbine main shaft 1 and corresponding oil seal ring close
Seal component.
Wherein, the internal diameter of the upstream side oil seal ring 4 and downstream side oil seal ring 6 be less than hydraulic turbine main shaft 1 on annular groove 7 it is straight
Diameter, in the present embodiment, the diameter of annular groove 7 is bigger 0.15mm~0.30mm than the internal diameter of oil seal ring on the hydraulic turbine main shaft 1, phase
There are certain interval, the shapes between dividing valve face of the adjacent two valves oil seal ring after closing, dividing between valve face for two valve oil seal ring of neighbour
At gap be equal, it is ensured that divide valve face bolt not generating opposite position in the annular groove that oil seal ring after conjunction is reliably fixed on main shaft
It moves.
Wherein, the seal member is made of at least one layer of rubber seal 8, in the upstream side oil seal ring 4 and downstream
Installation annular groove is provided on the inner side end of side seal oil ring 6, the rubber seal 8 is separately positioned on 4 He of upstream side oil seal ring
In the installation annular groove of downstream side oil seal ring 6, the rubber seal 8 between the upstream side oil seal ring 4 and hydraulic turbine main shaft 1 is arranged
At the position for being relatively distant from drive end bearing bracket 3, the rubber seal 8 between the downstream side oil seal ring 6 and hydraulic turbine main shaft 1 is arranged
At the position for being relatively distant from rear end cap 5, to ensure the leakproofness between oil seal ring and main shaft mating surface.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (6)
1. a kind of tubular turbine guide bearing structure, including it is socketed in hydraulic turbine main shaft（1）The bearing body of periphery（2）, described
Hydraulic turbine main shaft（1）It can be relative to bearing body（2）It is freely rotated, the upstream side of the bearing arrangement is provided with drive end bearing bracket
（3）And upstream side oil seal ring（4）, the downstream side of the bearing arrangement is provided with rear end cap（5）And downstream side oil seal ring
（6）, the drive end bearing bracket（3）And rear end cap（5）Respectively together in bearing body（2）End, it is characterised in that：The upstream side oil sealing
Ring（4）With downstream side oil seal ring（6）It is divided at least two valves respectively, in the hydraulic turbine main shaft（1）Periphery is provided with and upstream
Side seal oil ring（4）With downstream side oil seal ring（6）The annular groove of corresponding matching（7）, the upstream side oil seal ring（4）With downstream side oil sealing
Ring（6）It is respectively arranged at corresponding annular groove（7）It is interior, and oil seal ring divide valve face using bolt close, by upstream side oil seal ring（4）With
Downstream side oil seal ring（6）Fastening in hydraulic turbine main shaft（1）Annular groove（7）It is interior, the upstream side oil seal ring（4）The downstream side and
Oil seal ring（6）Internal diameter be less than hydraulic turbine main shaft（1）Upper annular groove（7）Diameter, adjacent two valves oil seal ring divides valve face after closing
Between there are certain intervals, in the hydraulic turbine main shaft（1）It is provided with seal member between corresponding oil seal ring.
2. tubular turbine guide bearing structure according to claim 1, it is characterised in that：The hydraulic turbine main shaft（1）
Upper annular groove（7）Diameter it is bigger 0.15mm~0.30mm than the internal diameter of oil seal ring.
3. tubular turbine guide bearing structure according to claim 1, it is characterised in that：The adjacent two valves oil seal ring
Divide the gap formed between valve face to be equal.
4. tubular turbine guide bearing structure according to claim 1, it is characterised in that：The seal member is by least
One layer of rubber seal（8）Composition, the upstream side oil seal ring（4）With hydraulic turbine main shaft（1）Between rubber seal（8）If
It sets and is being relatively distant from drive end bearing bracket（3）Position at, the downstream side oil seal ring（6）With hydraulic turbine main shaft（1）Between rubber it is close
Seal（8）Setting is being relatively distant from rear end cap（5）Position at.
5. tubular turbine guide bearing structure according to claim 4, it is characterised in that：In the upstream side oil seal ring
（4）With downstream side oil seal ring（6）Inner side end on be provided with installation annular groove, the rubber seal（8）It is separately positioned on
Swim side seal oil ring（4）With downstream side oil seal ring（6）Installation annular groove in.
6. tubular turbine guide bearing structure as claimed in any of claims 1 to 5, it is characterised in that：It is described
Drive end bearing bracket（3）And rear end cap（5）It is divided at least two valves respectively, in the drive end bearing bracket（3）And rear end cap（5）Divide valve face smear
There is sealant, and conjunction is fixed together by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810073678.0A CN108266304B (en) | 2018-01-25 | 2018-01-25 | A kind of tubular turbine guide bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810073678.0A CN108266304B (en) | 2018-01-25 | 2018-01-25 | A kind of tubular turbine guide bearing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108266304A CN108266304A (en) | 2018-07-10 |
| CN108266304B true CN108266304B (en) | 2018-11-13 |
Family
ID=62776727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810073678.0A Active CN108266304B (en) | 2018-01-25 | 2018-01-25 | A kind of tubular turbine guide bearing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN108266304B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671253A (en) * | 2019-09-19 | 2020-01-10 | 湖南云箭集团有限公司 | Shaft extension through-flow Kaplan turbine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1358268A (en) * | 1970-12-04 | 1974-07-03 | Leyland Gas Turbines Ltd | Thermal regenerators |
| CN202091511U (en) * | 2011-05-24 | 2011-12-28 | 纽威数控装备（苏州）有限公司 | Composite type sealing device |
| CN202756619U (en) * | 2012-06-27 | 2013-02-27 | 沃德(天津)传动有限公司 | Speed reduction machine and sealing device thereof |
| CN203472985U (en) * | 2013-09-23 | 2014-03-12 | 芜湖世特瑞转向系统有限公司 | Positioning and sealing structure for upper end of gear and rack type steering engine valve |
| CN204226649U (en) * | 2014-11-03 | 2015-03-25 | 德阳东航电站设备有限公司 | A kind of water turbine apex combustion seal |
| CN106090222B (en) * | 2016-06-23 | 2017-09-19 | 上海中船三井造船柴油机有限公司 | A kind of dynamic seal structure of kinematic axis |
| CN206092271U (en) * | 2016-10-11 | 2017-04-12 | 重庆云河发电设备有限公司 | Bulb tubular turbine hydroelectric set sympodium holds prevents getting rid of oily structure |
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2018
- 2018-01-25 CN CN201810073678.0A patent/CN108266304B/en active Active
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| Publication number | Publication date |
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| CN108266304A (en) | 2018-07-10 |
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