CN204153148U - A kind of main shaft sealing construction - Google Patents
A kind of main shaft sealing construction Download PDFInfo
- Publication number
- CN204153148U CN204153148U CN201420588397.6U CN201420588397U CN204153148U CN 204153148 U CN204153148 U CN 204153148U CN 201420588397 U CN201420588397 U CN 201420588397U CN 204153148 U CN204153148 U CN 204153148U
- Authority
- CN
- China
- Prior art keywords
- ring
- piston packing
- seal
- main shaft
- packing ring
- 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
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Classifications
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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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- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of main shaft sealing construction, it comprises the seal holder ring (2) being arranged on circle main shaft wearing ring (1) inside spindle flange a and corresponding seal ring and being arranged on main shaft b axle journal place; Described seal ring comprises the piston packing ring inner ring (12) of piston packing ring outer ring (11) and the side that sets within it, a circle cavity is provided with between described piston packing ring outer ring (11) and piston packing ring inner ring (12), the piston packing ring (13) that piston with it coordinates is provided with in this cavity, one end of described 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 utility model can effectively prevent from press water from passing through the gap of rotating between stationary part by the way that radial seal and axial seal combine leaking phenomenon to bulb internal damage bearing.
Description
Technical field
The utility model relates to field of machining and machinebuilding technology, is specifically related to a kind of main shaft sealing construction.
Background technique
The main shaft of water turbine is sealed by rubber, because namely rubber ring properties of materials there will be the hardening problem of oxidation after using one end event, thus causing it to lose due seal action, this kind of structure also cannot effectively prevent from press water from passing through the gap of rotating between stationary part leaking to bulb internal damage bearing simultaneously.
Model utility content
The utility model object is to provide a kind of main shaft sealing construction, and it can solve problem existing in background technique effectively.
In order to solve in background technique existing problem, it comprises the seal holder ring 2 being arranged on a circle main shaft wearing ring 1 inside spindle flange a and corresponding seal ring and being arranged on main shaft b axle journal place; Described seal ring comprises the piston packing ring inner ring 12 of piston packing ring outer ring 11 and the side that sets within it, a circle cavity is provided with between described piston packing ring outer ring 11 and piston packing ring inner ring 12, the piston packing ring 13 that piston with it coordinates is provided with in this cavity, one end of described piston packing ring 13 is evenly distributed in spring 14, and its other end extends cavity and is against on wearing ring 1 by spring 14; Described seal holder ring 2 is arranged on the inner ring place of piston packing ring inner ring 12, its inwall respectively radial direction offers several seal groove 21, the seal ring 22 of closely grafting cooperation is with it provided with in each seal groove 21, the side that described seal ring 22 is positioned at seal groove 21 is provided with Packing spring 23, and its opposite side is against the axle journal place of main shaft b by described Packing spring 23.
The end of described piston packing ring inner ring 12 is evenly distributed in several screw, guide rod 15 is provided with in this screw, the outside thread coordinated that to spin with screw is provided with near the root in described guide rod 15 bar portion, all the other large portions are column construction, wherein column construction partially pass through spring 14 and piston packing ring 13 closely grafting coordinate.
Described piston packing ring 13 offers the spring groove matched with spring 14.
Owing to have employed above technological scheme, the utility model has following beneficial effect: the way combined by radial seal and axial seal can effectively prevent from press water from passing through the gap of rotating between stationary part leaking phenomenon to bulb internal damage bearing.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model, below in conjunction with accompanying drawing, embodiment is briefly described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial structurtes schematic diagram of Fig. 1;
Fig. 3 is the partial structurtes schematic diagram of Fig. 2.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment being clearly and completely described.
Referring to Fig. 1-3, this embodiment is achieved by the following technical solutions, and it comprises the seal holder ring 2 being arranged on a circle main shaft wearing ring 1 inside spindle flange a and corresponding seal ring and being arranged on main shaft b axle journal place; Described seal ring comprises the piston packing ring inner ring 12 of piston packing ring outer ring 11 and the side that sets within it, a circle cavity is provided with between described piston packing ring outer ring 11 and piston packing ring inner ring 12, the piston packing ring 13 that piston with it coordinates is provided with in this cavity, one end of described piston packing ring 13 is evenly distributed in spring 14, and its other end extends cavity and is against on wearing ring 1 by spring 14; Described seal holder ring 2 is arranged on the inner ring place of piston packing ring inner ring 12, its inwall respectively radial direction offers several seal groove 21, the seal ring 22 of closely grafting cooperation is with it provided with in each seal groove 21, the side that described seal ring 22 is positioned at seal groove 21 is provided with Packing spring 23, and its opposite side is against the axle journal place of main shaft b by described Packing spring 24.
The end of described piston packing ring inner ring 12 is evenly distributed in several screw, guide rod 15 is provided with in this screw, the outside thread coordinated that to spin with screw is provided with near the root in described guide rod 15 bar portion, all the other large portions are column construction, wherein column construction partially pass through spring 14 and piston packing ring 13 closely grafting coordinate.
Described piston packing ring 13 offers the spring groove matched with spring 14.
Below in conjunction with accompanying drawing, the working principle of technological scheme in this concrete enforcement is further elaborated:
Make it be fitted in closely on spindle flange a all the time under the driving of the spring 14 that the piston packing ring 13 that main shaft b and spindle flange a is arranged on spindle flange a place in the process of rotating is arranged at circumference uniform distribution, thus realize the object of axial seal; Be arranged in the seal groove 21 on seal holder ring 2 inner headed face and be provided with seal ring 22, sealing ring 22 fits tightly with the periphery at the axle journal place of main shaft b under the driving of Packing spring 23, thus realize the object of radial seal, thus effectively prevent from press water from passing through the gap of rotating between stationary part leaking phenomenon to bulb internal damage bearing.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (3)
1. a main shaft sealing construction, is characterized in that it comprises the seal holder ring (2) being arranged on circle main shaft wearing ring (1) inside spindle flange a and corresponding seal ring and being arranged on main shaft b axle journal place; Described seal ring comprises the piston packing ring inner ring (12) of piston packing ring outer ring (11) and the side that sets within it, a circle cavity is provided with between described piston packing ring outer ring (11) and piston packing ring inner ring (12), the piston packing ring (13) that piston with it coordinates is provided with in this cavity, one end of described piston packing ring (13) is evenly distributed in spring (14), and its other end extends cavity and is against on wearing ring (1) by spring (14); Described seal holder ring (2) is arranged on the inner ring place of piston packing ring inner ring (12), its inwall respectively radial direction offers several seal groove (21), the seal ring (22) of closely grafting cooperation is with it provided with in each seal groove (21), the side that described seal ring (22) is positioned at seal groove (21) is provided with Packing spring (23), and its opposite side is against the axle journal place of main shaft b by described Packing spring (23).
2. a kind of main shaft sealing construction according to claim 1, it is characterized in that the end of described piston packing ring inner ring (12) is evenly distributed in several screw, guide rod (15) is provided with in this screw, the outside thread coordinated that to spin with screw is provided with near the root in described guide rod (15) bar portion, all the other large portions are column construction, wherein column construction partially pass through spring (14) and piston packing ring (13) closely grafting coordinate.
3. a kind of main shaft sealing construction according to claim 1, is characterized in that described piston packing ring (13) offering the spring groove matched with spring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588397.6U CN204153148U (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 |
|---|---|---|---|
| CN201420588397.6U CN204153148U (en) | 2014-10-13 | 2014-10-13 | A kind of main shaft sealing construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153148U true CN204153148U (en) | 2015-02-11 |
Family
ID=52511264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420588397.6U Expired - Fee Related CN204153148U (en) | 2014-10-13 | 2014-10-13 | A kind of main shaft sealing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265904A (en) * | 2014-10-13 | 2015-01-07 | 广东梅雁吉祥水电股份有限公司 | Main shaft seal structure |
-
2014
- 2014-10-13 CN CN201420588397.6U patent/CN204153148U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265904A (en) * | 2014-10-13 | 2015-01-07 | 广东梅雁吉祥水电股份有限公司 | Main shaft seal structure |
| CN104265904B (en) * | 2014-10-13 | 2017-07-07 | 广东梅雁吉祥水电股份有限公司 | A kind of main shaft sealing construction |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20161013 |