CN204025365U - Novel water wheel dynamo bearing oil gas sealing configuration - Google Patents
Novel water wheel dynamo bearing oil gas sealing configuration Download PDFInfo
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- CN204025365U CN204025365U CN201420526609.8U CN201420526609U CN204025365U CN 204025365 U CN204025365 U CN 204025365U CN 201420526609 U CN201420526609 U CN 201420526609U CN 204025365 U CN204025365 U CN 204025365U
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- pressing plate
- sealing cover
- seal ring
- groove
- ring
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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 relates to a kind of Novel water wheel dynamo bearing oil gas sealing configuration, comprise sealing cover, seal ring, pressing plate, sealing cover, seal ring, pressing plate is circular and is surrounded on main shaft periphery, it is characterized in that, the interior edge face of described seal ring is provided with the circular groove of some circle indents, the middle part of seal ring to outer ring arranges the draw-in groove A of concave-convex, the inner ring edge of sealing cover is provided with the draw-in groove B of the concave-convex corresponding with draw-in groove A, between the outer ring of seal ring and the inner ring of sealing cover, pass through draw-in groove A, the mutual engagement connection of draw-in groove B, described pressing plate is covered in sealing cover and seal ring, wherein, the inner ring of pressing plate covers on seal ring, the outer ring of pressing plate covers on sealing cover, this oil gas sealing configuration is provided with special channel gasket for polyurethane material, seal ring again with sealing cover, pressing plate combines, can meet the requirement of the best oil sealing of bearing.
Description
Technical field
The utility model relates to hydraulic turbine generator, be specifically related to a kind of for rotary component surface of contact linear velocity be the upper and lower guide bearing oil groove of the hydraulic turbine generator oil gas sealed oil catch below 10m/s, i.e. Novel water wheel dynamo bearing oil gas sealing configuration.
Background technique
In hydraulic turbine generator, once bearing oil gas is poorly sealed, will consume lubricant oil, pollute winding, damage insulation, affect unit safety operation.The bearing oil air-tight structure that hydraulic turbine generator is conventional has copper gear piece atmoseal structure and mazy type industrial felt sealing configuration.Wherein, adopt copper gear piece air sealed sealing configuration, have following shortcoming: 1) structure of copper gear piece need to be processed fixed copper gear piece draw-in groove in the fixed position of sealing cover, embed draw-in groove and need adopt silver-bearing copper to weld, manufacture cost is high; 2) copper gear piece is conductor, for guaranteeing motor safety operation, needs to arrange the related measure that prevents shaft current; 3) copper does not have wear resistance, and in installing and using, guarantee has certain gap with rotatable parts, adjustment difficulty is installed larger; 4) structure of copper gear piece is air sealed sealing, and inside need to pass into pressure air, and a set of air seal set need to be set.
If adopt mazy type industrial felt sealing configuration, shortcoming is as follows: 1) industrial felt is not wear-resisting, and actual life is short, need often change, and oil sealing weak effect, unit oil gas is easily overflowed, and pollutes unit, affects the safe and stable operation of generator unit; 2) oil groove of fixing industrial felt materials lid, needs to adopt cast aluminium structure, and cost is high, and aluminum casting intensity is low, easily in installation and transportation process, damages.Once bearing oil gas is poorly sealed, will consume lubricant oil, pollute winding, damage insulation, affect unit safety operation.
Summary of the invention
The shortcoming that the utility model exists in the practical application of hydrodynamic bearing oil gas sealing mainly for copper gear piece air sealed sealing configuration and mazy type industrial felt sealing configuration, invented a kind of Novel water wheel dynamo bearing oil gas sealing configuration, the critical component seal ring of this oil gas sealing configuration adopts polyurethane material to make, and be provided with special channel gasket for polyurethane material, seal ring combines with sealing cover, pressing plate again, can meet the requirement of the best oil sealing of bearing.
Above-mentioned technical problem of the present utility model is implemented by the following technical programs: a kind of Novel water wheel dynamo bearing oil gas sealing configuration, comprise sealing cover, seal ring, pressing plate, sealing cover, seal ring, pressing plate is circular and is surrounded on main shaft periphery, it is characterized in that, the interior edge face of described seal ring is provided with the circular groove of some circle indents, the middle part of seal ring to outer ring arranges the draw-in groove A of concave-convex, the inner ring edge of sealing cover is provided with the draw-in groove B of the concave-convex corresponding with draw-in groove A, between the outer ring of seal ring and the inner ring of sealing cover, pass through draw-in groove A, the mutual engagement connection of draw-in groove B, described pressing plate is covered in sealing cover and seal ring, wherein, the inner ring of pressing plate covers on seal ring, the outer ring of pressing plate covers on sealing cover, simultaneously, the outer ring of pressing plate, on sealing cover, be provided with attachment hole, the attachment hole of pressing plate outer ring and the attachment hole on sealing cover one a pair of its, fastening piece is set in attachment hole, pressing plate and sealing cover are formed and are removably connected by fastening piece.
As preferably, described seal ring is polyurethane material.Polyurethane material tool has the following advantages: super wear-resisting, shock resistance, selflubricating, temperature tolerance at minus 20 degrees to high temperature 120 degree; Polyurethane material can be according to different usage requirements, by specification, kind and the formula of feed change, the seal ring product of synthetic desired properties, lighter in weight, intensity are large, insulation and sound insulation value is superior, electrical properties is splendid, and processing technology is good, water absorption rate is low; The polyurethane Sealing of moulding by casting, has fine elasticity, according to the difference of cut length, can curve required O-ring seal.
As preferably, the interior edge face of described seal ring is provided with the circular groove of two circle indents, and the cross section of circular groove is isosceles trapezoid.The interior edge face of seal ring contacts with main shaft, and circular groove and main shaft wall form the pressure chamber of sealing, and this is the key that realizes oil gas sealing.
As preferably, the cross section of described draw-in groove A, draw-in groove B is right-angled trapezium.
As preferably, the thickness of described seal ring is greater than the thickness of sealing cover inner ring.
As preferably, the thickness of described pressing plate inner ring is less than the thickness of pressing plate outer ring, and the thickness difference of pressing plate inner ring and pressing plate outer ring equals the thickness difference of seal ring and sealing cover inner ring.
In sum, the utility model compared with prior art tool have the following advantages:
The Placement of polyurethane sealing ring of the present utility model and sealing cover is engagement connection, the Placement of sealing cover and pressing plate is for removably connecting, be that polyurethane sealing ring is located jointly by pressing plate, sealing cover, such Placement is convenient to install, changes, is safeguarded; Seal ring of the present utility model adopts unified metal mold cast, has good elasticity after moulding, forms the channel gasket of same shape, and the draw-in groove of different unit sealing covers adopts unified size fixed seal ring, is convenient to unified production; Polyurethane sealing ring has good insulating property, in the structure being connected with bearing bracket, prevents the measure of shaft current without employing; Polyurethane sealing ring of the present utility model has good water resistence, high wear resistance, and physical life is long.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the plan view of the utility model sealing cover;
Fig. 3 is the sectional view of the utility model sealing cover;
Fig. 4 is the enlarged view of A part in Fig. 3;
Fig. 5 is the plan view of the utility model seal ring;
Fig. 6 is the sectional view of the utility model seal ring;
Fig. 7 is the plan view of the utility model pressing plate;
Fig. 8 is the sectional view of the utility model pressing plate.
Number in the figure is: 1, sealing cover; 2, seal ring; 3, pressing plate; 4, circular groove; 5, draw-in groove A; 6, draw-in groove B; 7, attachment hole; 8, fastening piece.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1:
As shown in Fig. 1-8, a kind of Novel water wheel dynamo bearing oil gas sealing configuration, comprises sealing cover 1, seal ring 2, pressing plate 3, and sealing cover 1, seal ring 2, pressing plate 3 are circular and are surrounded on main shaft periphery.
Described seal ring 2 is polyurethane material, adopts unified metal mold cast to form, and as shown in Figure 6, the interior edge face of seal ring 2 is provided with the circular groove 4 of two circle indents of two circle indents, and the cross section of circular groove 4 is isosceles trapezoid; The middle part of seal ring 2 to outer ring arranges the draw-in groove A5 of concave-convex, and the cross section of draw-in groove A5 is right-angled trapezium.
As shown in Fig. 1,3,4, the inner ring edge of sealing cover 1 is provided with the draw-in groove B6 of the concave-convex corresponding with draw-in groove A5, and the cross section of draw-in groove B6 is right-angled trapezium; Between the inner ring of the outer ring of seal ring 2 and sealing cover 1, pass through draw-in groove A5, the mutual engagement connection of draw-in groove B6.The thickness of described seal ring 2 is greater than the thickness of sealing cover 1 inner ring.
As shown in Fig. 1,2,7,8, pressing plate 3 is covered in sealing cover 1 and seal ring 2; The thickness of pressing plate 3 inner rings is less than the thickness of pressing plate 3 outer rings, and the thickness difference of pressing plate 3 inner rings and pressing plate 3 outer rings equals the thickness difference of seal ring 2 and sealing cover 1 inner ring; The inner ring of pressing plate 3 covers on seal ring 2, the outer ring of pressing plate 3 covers on sealing cover 1, simultaneously, the inner ring of the outer ring of pressing plate 3, sealing cover 1 is provided with eight attachment holes 7, attachment hole 7 one on the attachment hole of pressing plate 3 outer rings and sealing cover 1 inner ring a pair of its, the interior bolt and nut fastening piece 8 that arranges of attachment hole 7, pressing plate 3 is formed and is removably connected by bolt and nut fastening piece 8 with sealing cover 1.
Specific embodiment described in literary composition is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. a Novel water wheel dynamo bearing oil gas sealing configuration, comprise sealing cover (1), seal ring (2), pressing plate (3), sealing cover, seal ring, pressing plate is circular and is surrounded on main shaft periphery, it is characterized in that, the interior edge face of described seal ring is provided with the circular groove (4) of some circle indents, the middle part of seal ring to outer ring arranges the draw-in groove A(5 of concave-convex), the inner ring edge of sealing cover is provided with the draw-in groove B(6 of the concave-convex corresponding with draw-in groove A), between the outer ring of seal ring and the inner ring of sealing cover, pass through draw-in groove A, the mutual engagement connection of draw-in groove B, described pressing plate is covered in sealing cover and seal ring, wherein, the inner ring of pressing plate covers on seal ring, the outer ring of pressing plate covers on sealing cover, simultaneously, the outer ring of pressing plate, on sealing cover, be provided with attachment hole (7), the attachment hole of pressing plate outer ring and the attachment hole on sealing cover one a pair of its, fastening piece (8) is set in attachment hole, pressing plate and sealing cover are formed and are removably connected by fastening piece.
2. Novel water wheel dynamo bearing oil gas sealing configuration according to claim 1, is characterized in that, described seal ring is polyurethane material.
3. Novel water wheel dynamo bearing oil gas sealing configuration according to claim 1 and 2, is characterized in that, the interior edge face of described seal ring is provided with the circular groove of two circle indents, and the cross section of circular groove is isosceles trapezoid.
4. Novel water wheel dynamo bearing oil gas sealing configuration according to claim 1 and 2, is characterized in that, the cross section of described draw-in groove A, draw-in groove B is right-angled trapezium.
5. Novel water wheel dynamo bearing oil gas sealing configuration according to claim 3, is characterized in that, the thickness of described seal ring is greater than the thickness of sealing cover inner ring.
6. Novel water wheel dynamo bearing oil gas sealing configuration according to claim 4, it is characterized in that, the thickness of described pressing plate inner ring is less than the thickness of pressing plate outer ring, and the thickness difference of pressing plate inner ring and pressing plate outer ring equals the thickness difference of seal ring and sealing cover inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526609.8U CN204025365U (en) | 2014-09-15 | 2014-09-15 | Novel water wheel dynamo bearing oil gas sealing configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526609.8U CN204025365U (en) | 2014-09-15 | 2014-09-15 | Novel water wheel dynamo bearing oil gas sealing configuration |
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| Publication Number | Publication Date |
|---|---|
| CN204025365U true CN204025365U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420526609.8U Active CN204025365U (en) | 2014-09-15 | 2014-09-15 | Novel water wheel dynamo bearing oil gas sealing configuration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278275A (en) * | 2018-02-05 | 2018-07-13 | 洛阳新强联回转支承股份有限公司 | A kind of extra large size bearing changeable type textile rubber oil seals |
-
2014
- 2014-09-15 CN CN201420526609.8U patent/CN204025365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278275A (en) * | 2018-02-05 | 2018-07-13 | 洛阳新强联回转支承股份有限公司 | A kind of extra large size bearing changeable type textile rubber oil seals |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |