CN220037447U - Main shaft sealing device of hydraulic generator - Google Patents
Main shaft sealing device of hydraulic generator Download PDFInfo
- Publication number
- CN220037447U CN220037447U CN202321030705.9U CN202321030705U CN220037447U CN 220037447 U CN220037447 U CN 220037447U CN 202321030705 U CN202321030705 U CN 202321030705U CN 220037447 U CN220037447 U CN 220037447U
- Authority
- CN
- China
- Prior art keywords
- ring
- main shaft
- wall
- sealing device
- sealing
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 230000003068 static effect Effects 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 229920001973 fluoroelastomer Polymers 0.000 claims description 4
- PYLLWONICXJARP-UHFFFAOYSA-N manganese silicon Chemical compound [Si].[Mn] PYLLWONICXJARP-UHFFFAOYSA-N 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 229920000800 acrylic rubber Polymers 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 14
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 description 2
- -1 acrylic ester Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Classifications
-
- 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
- Sealing Devices (AREA)
Abstract
The utility model relates to the technical field of hydraulic generators and discloses a hydraulic generator main shaft sealing device which comprises a main shaft and a protective shell, wherein a shaft sleeve is arranged on the outer wall of the main shaft, a rotating ring is fixedly connected to the outer wall of the shaft sleeve, three protruding blocks are arranged on the outer wall of the right side of the rotating ring, a plurality of holes are formed in the right side of the rotating ring, springs are arranged in the holes, a push ring is arranged on the right short side of the springs, and a second sealing ring is arranged on the right side of the push ring. According to the utility model, the rotating ring, the push ring, the dynamic ring and the static ring are perpendicular to the end face of the shaft which slides relatively, are kept to be adhered with the inner ring groove of the protective shell under the action of fluid pressure and the elasticity of the spring, and are matched with the first sealing ring and the second sealing ring, so that the water stopping effect is achieved, and the water stopping sealing effect is improved.
Description
Technical Field
The utility model relates to the technical field of hydraulic generators, in particular to a hydraulic generator main shaft sealing device.
Background
The hydro-generator is a generator which uses a water turbine as a prime motor to convert water energy into electric energy. When the water flow passes through the water turbine, the water energy is converted into mechanical energy, the rotating shaft of the water turbine drives the rotor of the generator, and the mechanical energy is converted into electric energy to be output, so that the water turbine is a main power device for generating electric energy in a hydropower station. Because the mechanical seal used by the traditional hydraulic generator has the problems of non-metal seal abrasion and thermal cracking, poor abrasion resistance and heat resistance, loose and broken springs and insufficient toughness, so that the seal is worn too much, and the like, thereby causing poor sealing and water stopping effects.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a main shaft sealing device of a hydraulic generator.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a hydraulic generator main shaft sealing device, includes main shaft and protective housing, the outer wall of main shaft is provided with the axle sleeve, the outer wall fixedly connected with swivel becket of axle sleeve, the right side outer wall of swivel becket is provided with three lug, the right side of swivel becket is provided with a plurality of holes, a plurality of the inside spring that is provided with of hole, the right side of spring is provided with the push ring, the right side of push ring is provided with the second sealing washer, the right side of second sealing washer is provided with dynamic ring, the outer wall of dynamic ring is provided with three recess, the right side of dynamic ring is provided with static ring, the right side outer wall of static ring is provided with first sealing washer.
As a further description of the above technical solution:
one end of the spring is contacted with the inner wall of the hole, and the other end of the hole is contacted with the left side of the push ring.
As a further description of the above technical solution:
the outer wall of the lug is in sliding connection with the outer wall groove of the dynamic ring.
As a further description of the above technical solution:
the right side of the interior of the protective shell is provided with a sealing ring groove, and the sealing ring groove is contacted with the right side of the first sealing ring.
As a further description of the above technical solution:
the inner wall of the static ring is made of silicon carbide, and the static ring is made of fluororubber.
As a further description of the above technical solution:
the dynamic ring is made of high manganese steel.
As a further description of the above technical solution:
the second sealing ring is made of nitrile rubber.
As a further description of the above technical solution:
the first sealing ring is made of acrylic rubber.
As a further description of the above technical solution:
the spring is made of silicon-manganese spring steel.
As a further description of the above technical solution:
the rotating ring is fixed on the outer wall of the shaft sleeve through screws.
The utility model has the following beneficial effects:
according to the utility model, the rotating ring, the push ring, the dynamic ring and the static ring are perpendicular to the end face of the shaft which slides relatively, and are kept to be adhered with the sealing ring groove in the protective shell under the action of fluid pressure and the elasticity of the spring, and the sealing ring groove is matched with the first sealing ring and the second sealing ring, so that the water stopping effect is achieved, and the water stopping sealing effect is improved.
Drawings
FIG. 1 is a perspective view of a hydraulic generator main shaft sealing device according to the present utility model;
FIG. 2 is a cross-sectional view of a protective casing of a spindle seal assembly for a hydraulic generator in accordance with the present utility model;
fig. 3 is an exploded view of a spindle sealing device for a hydraulic generator according to the present utility model.
Legend description:
1. a shaft; 2. a protective shell; 3. a shaft sleeve; 4. a rotating ring; 5. a dynamic ring; 6. a static ring; 7. a first seal ring; 8. a hole; 9. a spring; 10. a push ring; 11. and a second sealing ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a hydraulic generator main shaft sealing device, including main shaft 1 and protecting case 2, the outer wall of main shaft 1 is provided with axle sleeve 3, the outer wall fixedly connected with rotation ring 4 of axle sleeve 3, the right side outer wall of rotation ring 4 is provided with three lug, the right side of rotation ring 4 is provided with a plurality of holes 8, the inside spring 9 that is provided with of a plurality of holes 8, the right side of spring 9 is short to be provided with push ring 10, the right side of push ring 10 is provided with second sealing washer 11, the right side of second sealing washer 11 is provided with dynamic ring 5, the outer wall of dynamic ring 5 is provided with three recess, the right side of dynamic ring 5 is provided with static ring 6, the right side outer wall of static ring 6 is provided with first sealing washer 7, make push ring 10 promote second sealing washer 11 under the elasticity effect of spring 9 through the hole 8 on the rotation ring 4 on the axle sleeve 3 left side, thereby make the recess of dynamic ring 5 make relative slip on the lug on rotation ring 4 perpendicular to the axle 1, simultaneously under the fluid pressure effect, seal laminating with static ring 6 and first sealing ring 7 and protecting case 2 inside right side, thereby sealing effect has been improved, sealing effect has been reached.
One end of the spring 9 contacts with the inner wall of the hole 8, the other end of the hole 8 contacts with the left side of the push ring 10, the push ring 10 pushes the second seal ring 11 to prop against the dynamic ring 5 under the action of the elasticity of the spring 9 in the hole 8 on the rotating ring 4 on the left side of the shaft sleeve 3, the outer wall of the projection is in sliding connection with the groove of the outer wall of the dynamic ring 5, the push ring 10 pushes the second seal ring 11 to prop against the dynamic ring 5 under the action of the elasticity of the spring 9 in the hole 8 on the rotating ring 4 on the left side of the shaft sleeve 3, the groove of the dynamic ring 5 slides relatively perpendicular to the shaft 1 on the projection on the rotating ring 4, the right side of the inside of the protective shell 2 is provided with a seal ring groove which contacts with the right side of the first seal ring 7, meanwhile, the static ring 6 and the first seal ring 7 are attached with the seal ring groove on the right side of the inside of the protective shell 2 under the action of fluid pressure, so as to achieve the function of water stop, the sealing effect of water stop is improved, the inner wall of the static ring 6 is made of silicon carbide, the silicon carbide has higher resistance to alkali metal erosion, and has wear-resistant property, the static ring 6 is made of fluororubber, the fluororubber has the effects of heat resistance, oil resistance and aging resistance, the dynamic ring 5 is made of high manganese steel, the high manganese steel has the effects of high hardness, internal toughness, wear resistance and impact resistance under the condition of bearing severe impact or contact stress, the second sealing ring 11 is made of nitrile rubber, the nitrile rubber has the characteristics of oil resistance, high temperature resistance and wear resistance, the first sealing ring 7 is made of acrylic ester rubber, the acrylic ester has the effects of high temperature resistance and reversible deformation, the spring 9 is made of silicon-manganese spring steel, the silicon-manganese spring steel can obviously improve the elastic limit and the toughness of steel, the rotating ring 4 is fixed on the outer wall of the shaft sleeve 3 through screws, the screw functions to facilitate the disassembly of the rotary ring 4.
Working principle: firstly, the push ring 10 pushes the second sealing ring 11 to prop against the dynamic ring 5 under the action of the elasticity of the spring 9 in the hole 8 on the rotating ring 4 on the left side of the shaft sleeve 3, so that the groove of the dynamic ring 5 slides relatively perpendicular to the shaft 1 on the convex block on the rotating ring 4, and simultaneously, the static ring 6 and the first sealing ring 7 are attached to the sealing ring groove on the right side inside the protective case 2 under the action of fluid pressure, thereby achieving the action of water stop and improving the sealing effect of water stop.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (10)
1. The utility model provides a hydraulic generator main shaft sealing device, includes main shaft (1) and protective housing (2), its characterized in that: the outer wall of main shaft (1) is provided with axle sleeve (3), the outer wall fixedly connected with rotation ring (4) of axle sleeve (3), the right side outer wall of rotation ring (4) is provided with three lug, the right side of rotation ring (4) is provided with a plurality of holes (8), and is a plurality of inside spring (9) that are provided with of hole (8), the right side of spring (9) is short to be provided with push away ring (10), the right side of push away ring (10) is provided with second sealing washer (11), the right side of second sealing washer (11) is provided with dynamic ring (5), the outer wall of dynamic ring (5) is provided with three recess, the right side of dynamic ring (5) is provided with static ring (6), the right side outer wall of static ring (6) is provided with first sealing washer (7).
2. A hydro-generator main shaft sealing device as defined in claim 1, wherein: one end of the spring (9) is contacted with the inner wall of the hole (8), and the other end of the hole (8) is contacted with the left side of the push ring (10).
3. A hydro-generator main shaft sealing device as defined in claim 1, wherein: the outer wall of the lug is in sliding connection with the outer wall groove of the dynamic ring (5).
4. A hydro-generator main shaft sealing device as defined in claim 1, wherein: the right side of the interior of the protective shell (2) is provided with a sealing ring groove, and the sealing ring groove is contacted with the right side of the first sealing ring (7).
5. A hydro-generator main shaft sealing device as defined in claim 1, wherein: the inner wall of the static ring (6) is made of silicon carbide, and the static ring (6) is made of fluororubber.
6. A hydro-generator main shaft sealing device as defined in claim 1, wherein: the dynamic ring (5) is made of high manganese steel.
7. A hydro-generator main shaft sealing device as defined in claim 1, wherein: the second sealing ring (11) is made of nitrile rubber.
8. A hydro-generator main shaft sealing device as defined in claim 1, wherein: the first sealing ring (7) is made of acrylic rubber.
9. A hydro-generator main shaft sealing device as defined in claim 1, wherein: the spring (9) is made of silicon-manganese spring steel.
10. A hydro-generator main shaft sealing device as defined in claim 1, wherein: the rotating ring (4) is fixed on the outer wall of the shaft sleeve (3) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321030705.9U CN220037447U (en) | 2023-05-04 | 2023-05-04 | Main shaft sealing device of hydraulic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321030705.9U CN220037447U (en) | 2023-05-04 | 2023-05-04 | Main shaft sealing device of hydraulic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220037447U true CN220037447U (en) | 2023-11-17 |
Family
ID=88736556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321030705.9U Active CN220037447U (en) | 2023-05-04 | 2023-05-04 | Main shaft sealing device of hydraulic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220037447U (en) |
-
2023
- 2023-05-04 CN CN202321030705.9U patent/CN220037447U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |