CN104265904B - A kind of main shaft sealing construction - Google Patents
A kind of main shaft sealing construction Download PDFInfo
- Publication number
- CN104265904B CN104265904B CN201410535814.5A CN201410535814A CN104265904B CN 104265904 B CN104265904 B CN 104265904B CN 201410535814 A CN201410535814 A CN 201410535814A CN 104265904 B CN104265904 B CN 104265904B
- Authority
- CN
- China
- Prior art keywords
- ring
- piston packing
- packing ring
- main shaft
- spring
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/24—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings with radially or tangentially compressed packing
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of main shaft sealing construction, it includes circle main shaft wearing ring (1) and corresponding sealing ring that are arranged on the inside of spindle flange a and the seal holder ring (2) being arranged at main shaft b axle journals；Piston packing ring inner ring (12) of the described sealing ring comprising piston packing ring outer ring (11) and the side that sets within it, a circle cavity is provided between described piston packing ring outer ring (11) and piston packing ring inner ring (12), the piston packing ring (13) that piston coordinates therewith is provided with the cavity, one end of the piston packing ring (13) is evenly distributed in spring (14), and its other end is extended cavity and is against on wearing ring (1) by spring (14).The method that the present invention is combined by radial seal and axial seal can effectively prevent press water from being leaked to the phenomenon of bulb internal damage bearing by the gap rotated and between stationary part.
Description
Technical field
The present invention relates to field of machining and machinebuilding technology, and in particular to a kind of main shaft sealing construction.
Background technology
The main shaft of the hydraulic turbine is sealed by rubber, because the characteristic of rubber loop material is after using one end event
The problem that oxidation is hardened occurs, so as to cause it to lose due sealing function, while this kind of structure also cannot be effective
Prevent press water from being leaked to bulb internal damage bearing by the gap rotated and between stationary part.
The content of the invention
It is an object of the present invention to provide a kind of main shaft sealing construction, it can efficiently solve asking in the presence of background technology
Topic.
In order in the presence of solving the problems, such as background technology, it includes the circle main shaft being arranged on the inside of spindle flange a and resists
Bull ring 1 and corresponding sealing ring and the seal holder ring 2 being arranged at main shaft b axle journals；Described sealing ring includes piston packing ring
Outer ring 11 and the piston packing ring inner ring 12 of the side that sets within it, described piston packing ring outer ring 11 and piston packing ring inner ring
A circle cavity is provided between 12, the piston packing ring 13 that piston coordinates therewith is provided with the cavity, the piston packing ring 13
One end is evenly distributed in spring 14, and its other end is extended cavity and is against on wearing ring 1 by spring 14；Described seal receptacle
Circle 2 is arranged at the inner ring of piston packing ring inner ring 12, and its inwall radially offers several seal grooves 21 respectively, each seal groove
The sealing ring 22 that tight grafting coordinates therewith is provided with 21, the side that the sealing ring 22 is located in seal groove 21 is provided with sealing bullet
Spring 23, its opposite side is against at the axle journal of main shaft b by described Packing spring 23.
The end of the piston packing ring inner ring 12 is evenly distributed in several screws, and guide rod 15, institute are provided with the screw
The external screw thread of the cooperation that spun with screw is provided near the root for stating the bar portion of guide rod 15, remaining big portion is column construction, wherein cylindricality
Structure division coordinates through spring 14 with the tight grafting of piston packing ring 13.
The spring groove being engaged with spring 14 is offered on the piston packing ring 13.
As a result of above technical scheme, the invention has the advantages that：By radial seal and axial seal
The method being combined can effectively prevent press water from being leaked to bulb internal exergy dissipation by the gap rotated and between stationary part
The phenomenon of bad bearing.
Brief description of the drawings
In order to illustrate more clearly of the present invention, embodiment is briefly described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the invention；
Fig. 2 is the partial structural diagram of Fig. 1；
Fig. 3 is the partial structural diagram of Fig. 2.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, below will
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
Referring to Fig. 1-3, this specific embodiment is achieved using following technical scheme, and it includes and is arranged on method of principal axis
A circle main shaft wearing ring 1 and corresponding sealing ring and the seal holder ring 2 being arranged at main shaft b axle journals on the inside of blue a；Described is close
Piston packing ring inner ring 12 of the seal ring comprising piston packing ring outer ring 11 and the side that sets within it, described piston packing ring outer ring
A circle cavity is provided between 11 and piston packing ring inner ring 12, the piston packing ring 13 that piston coordinates therewith is provided with the cavity,
One end of the piston packing ring 13 is evenly distributed in spring 14, and its other end is extended cavity and is against by spring 14 wear-resistant
On ring 1；Described seal holder ring 2 is arranged at the inner ring of piston packing ring inner ring 12, and its inwall radially offers several respectively
The sealing ring 22 that tight grafting coordinates therewith is provided with seal groove 21, each seal groove 21, the sealing ring 22 is located at seal groove
Side in 21 is provided with Packing spring 23, and its opposite side is against at the axle journal of main shaft b by described Packing spring 24.
The end of the piston packing ring inner ring 12 is evenly distributed in several screws, and guide rod 15, institute are provided with the screw
The external screw thread of the cooperation that spun with screw is provided near the root for stating the bar portion of guide rod 15, remaining big portion is column construction, wherein cylindricality
Structure division coordinates through spring 14 with the tight grafting of piston packing ring 13.
The spring groove being engaged with spring 14 is offered on the piston packing ring 13.
The operation principle to technical scheme in this specific implementation is further elaborated below in conjunction with the accompanying drawings：
The piston packing ring 13 that main shaft b and spindle flange a is arranged at spindle flange a during rotation is equal in circumference
It is set closely to be fitted on spindle flange a all the time under the driving of the spring 14 that cloth is set, so as to realize the purpose of axial seal；
Sealing ring 22 is provided with the seal groove 21 being arranged on the inner headed face of seal holder ring 2, driving of the sealing ring 22 in Packing spring 23
It is lower to be brought into close contact with the periphery at the axle journal of main shaft b, so as to realize the purpose of radial seal, so as to effectively prevent press water
Leaked by the gap between rotation and stationary part to the phenomenon of bulb internal damage bearing.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that, it still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (3)
1. a kind of main shaft sealing construction, it is characterised in that it includes circle main shaft wearing ring (1) being arranged on the inside of spindle flange a
And corresponding sealing ring and the seal holder ring (2) being arranged at main shaft b axle journals；Described sealing ring includes piston packing ring outer ring
(11) and the side that sets within it piston packing ring inner ring (12), in described piston packing ring outer ring (11) and piston packing ring
A circle cavity is provided between circle (12), the piston packing ring (13) that piston coordinates therewith, the piston seal are provided with the cavity
One end of ring (13) is evenly distributed in spring (14), and its other end extends cavity and is against wearing ring (1) by spring (14)
On；Described piston packing ring outer ring (11) top extends to one end, and described piston packing ring inner ring (12) top is to two ends
Extension, described piston packing ring inner ring (12) upper epitaxial section is arranged on described piston packing ring outer ring (11) top and extends
Above, described seal holder ring (2) is arranged at the inner ring of piston packing ring inner ring (12) section, and its inwall is radially offered respectively
The sealing ring (22) that tight grafting coordinates therewith, the sealing ring are provided with several seal grooves (21), each seal groove (21)
(22) side in seal groove (21) is provided with Packing spring (23), and its opposite side is against by described Packing spring (23)
At the axle journal of main shaft b.
2. a kind of main shaft sealing construction according to claim 1, it is characterised in that the piston packing ring inner ring (12)
End is evenly distributed in several screws, and guide rod (15) is provided with the screw, is provided near the root of guide rod (15) bar portion
Spin the external screw thread of cooperation with screw, and remaining big portion is column construction, and wherein column construction partially passes through spring (14) and piston
Closely grafting coordinates sealing ring (13).
3. a kind of main shaft sealing construction according to claim 1, it is characterised in that opened up on the piston packing ring (13)
There is the spring groove being engaged with spring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535814.5A CN104265904B (en) | 2014-10-13 | 2014-10-13 | A kind of main shaft sealing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535814.5A CN104265904B (en) | 2014-10-13 | 2014-10-13 | A kind of main shaft sealing construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104265904A CN104265904A (en) | 2015-01-07 |
| CN104265904B true CN104265904B (en) | 2017-07-07 |
Family
ID=52157458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410535814.5A Expired - Fee Related CN104265904B (en) | 2014-10-13 | 2014-10-13 | A kind of main shaft sealing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265904B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971804B (en) * | 2016-07-05 | 2018-08-17 | 国家电网公司 | A kind of main shaft seal wear extent sensor support device |
| CN114459929B (en) * | 2022-01-27 | 2024-04-19 | 山东省产品质量检验研究院 | Tool for detecting mechanical properties of sectional materials |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373638Y (en) * | 1999-04-10 | 2000-04-12 | 符世朝 | Floating shaft seal |
| CN201025223Y (en) * | 2007-03-30 | 2008-02-20 | 天津市天发重型水电设备制造有限公司 | Principal axis sealing device for water wheel machine |
| CN201258816Y (en) * | 2008-08-15 | 2009-06-17 | 哈尔滨电机厂有限责任公司 | Principal axis sealing device for end-face water pressure type hydroturbine |
| CN202691032U (en) * | 2012-03-12 | 2013-01-23 | 浙江富春江水电设备股份有限公司 | Sealing structure for water turbine spindle |
| CN103133695A (en) * | 2011-11-29 | 2013-06-05 | 天津市天发重型水电设备制造有限公司 | Novel main shaft sealing structure of hydraulic generator |
| CN103511633A (en) * | 2012-06-25 | 2014-01-15 | 江苏航天水力设备有限公司 | Main shaft sealing device |
| CN203453469U (en) * | 2013-07-09 | 2014-02-26 | 重庆大唐国际武隆水电开发有限公司 | A water turbine main shaft sealing structure |
| CN203533606U (en) * | 2013-10-22 | 2014-04-09 | 北京慧峰仁和科技股份有限公司 | Novel center cylinder sealing device of air preheater |
| CN104040228A (en) * | 2012-06-25 | 2014-09-10 | 伊格尔工业股份有限公司 | Sealing device |
| CN204153148U (en) * | 2014-10-13 | 2015-02-11 | 广东梅雁吉祥水电股份有限公司 | A kind of main shaft sealing construction |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006071032A (en) * | 2004-09-03 | 2006-03-16 | Mitsubishi Heavy Ind Ltd | Packing, axial seal mechanism and hydraulic power machine |
-
2014
- 2014-10-13 CN CN201410535814.5A patent/CN104265904B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373638Y (en) * | 1999-04-10 | 2000-04-12 | 符世朝 | Floating shaft seal |
| CN201025223Y (en) * | 2007-03-30 | 2008-02-20 | 天津市天发重型水电设备制造有限公司 | Principal axis sealing device for water wheel machine |
| CN201258816Y (en) * | 2008-08-15 | 2009-06-17 | 哈尔滨电机厂有限责任公司 | Principal axis sealing device for end-face water pressure type hydroturbine |
| CN103133695A (en) * | 2011-11-29 | 2013-06-05 | 天津市天发重型水电设备制造有限公司 | Novel main shaft sealing structure of hydraulic generator |
| CN202691032U (en) * | 2012-03-12 | 2013-01-23 | 浙江富春江水电设备股份有限公司 | Sealing structure for water turbine spindle |
| CN103511633A (en) * | 2012-06-25 | 2014-01-15 | 江苏航天水力设备有限公司 | Main shaft sealing device |
| CN104040228A (en) * | 2012-06-25 | 2014-09-10 | 伊格尔工业股份有限公司 | Sealing device |
| CN203453469U (en) * | 2013-07-09 | 2014-02-26 | 重庆大唐国际武隆水电开发有限公司 | A water turbine main shaft sealing structure |
| CN203533606U (en) * | 2013-10-22 | 2014-04-09 | 北京慧峰仁和科技股份有限公司 | Novel center cylinder sealing device of air preheater |
| CN204153148U (en) * | 2014-10-13 | 2015-02-11 | 广东梅雁吉祥水电股份有限公司 | A kind of main shaft sealing construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104265904A (en) | 2015-01-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20181013 |