CN206786003U - A kind of shaft seal structure with quiet dynamic double containment - Google Patents
A kind of shaft seal structure with quiet dynamic double containment Download PDFInfo
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- CN206786003U CN206786003U CN201720523683.8U CN201720523683U CN206786003U CN 206786003 U CN206786003 U CN 206786003U CN 201720523683 U CN201720523683 U CN 201720523683U CN 206786003 U CN206786003 U CN 206786003U
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- sealing gland
- seal structure
- pump housing
- seal
- sealing
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- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of shaft seal structure with quiet dynamic double containment, it is raised including axle, sealing gland, bolt, the pump housing, labyrinth seal structure, asphalt felt, O-ring seal and L-type, the sealing gland is fixed on axle by bolt, sealed between sealing gland and axle using O-ring seal, there is labyrinth seal structure and asphalt felt between the pump housing and sealing gland；The labyrinth seal structure is made up of the corresponding recess in pump housing lower surface and sealing gland upper surface, and the asphalt felt is filled in labyrinth seal structure, and sealing gland top L-type is raised closely rotatably chimeric with pump housing recess.Compared with prior art, the utility model uses static seal and dynamic sealing double containment, and static seal uses O-ring seal, dynamic sealing is using asphalt felt filling labyrinth seal space, reinforced seal is used compared to traditional scheme, the service life of equipment is extended in use, has saved cost.
Description
Technical field
The utility model belongs to the technical fields such as petrochemical industry, coal chemical industry, running device, has more particularly to one kind quiet dynamic double
The shaft seal structure of sealing.
Background technology
In domestic petrochemical industry and coal chemical engineering equipment, axle envelope main function is to seal the medium in running device, prevent leakage, really
Protect equipment safety, stable operation, the sealing structure used in the prior art such as Fig. 1：Axle 1 is rotor part, and gland 2 passes through positioning
Bolt 3 is fixed on the pump housing 4, forms stator component, and reinforced seal 5 is positioned over the cavity position that rotor and stator are formed, is used for
Seal interior media.Traditional scheme uses reinforced seal, is a kind of static seal form, in the process of running, seals inner ring and axle
Friction is produced, running in a period of time to leak, and renewal cost is higher, and using effect is general.
Utility model content
The purpose of this utility model is to provide a kind of shaft seal structure with quiet dynamic double containment, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides following technical scheme：A kind of axle envelope knot with quiet dynamic double containment
Structure, including axle, sealing gland, bolt, the pump housing, labyrinth seal structure, asphalt felt, O-ring seal and L-type are raised, institute
State sealing gland to be fixed on axle by bolt, sealed between sealing gland and axle using O-ring seal, it is O-shaped close
Seal is arranged on sealing gland lower surface recess, and labyrinth seal structure and asphalt felt are provided between the pump housing and sealing gland；
Multiple sets of recesses that multiple recess and sealing gland upper surfaces that the labyrinth seal structure is set by pump housing lower surface are set
Into multiple recesses that multiple recess and sealing gland upper surfaces that the pump housing lower surface is set are set, which correspond, to be set, institute
State asphalt felt to be filled in labyrinth seal structure, sealing gland top L-type is raised close rotatable embedding with pump housing recess
Close.
Preferably, labyrinth seal structure has 4 pairs of recess spaces.
Preferably, O-ring seal is made up of elastomeric material.
Preferably, the sealing gland and L-type projection are formed in one structure.
Compared with prior art, the beneficial effects of the utility model are：The utility model is double using static seal and dynamic sealing
Sealing, static seal use O-ring seal, and dynamic sealing is used using asphalt felt filling labyrinth seal structure compared to traditional scheme
Reinforced seal, the service life of equipment is extended in use, has saved cost.
Brief description of the drawings
Fig. 1：Traditional shaft seal structure schematic diagram；
Fig. 2：Shaft seal structure schematic diagram in the application；
1st, axle；2nd, sealing gland；3rd, bolt；4th, the pump housing；5th, labyrinth type structure；6th, asphalt felt；7th, O-ring seal；
8th, L-type is raised.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.
Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of shaft seal structure with quiet dynamic double containment, bag
Include axle 1, sealing gland 2, bolt 3, the pump housing 4, labyrinth seal structure 5, asphalt felt 6, O-ring seal 7 and L-type projection 8, institute
State sealing gland 2 to be fixed on axle 1 by bolt 3, be collectively forming rotor part, O is used between sealing gland 2 and axle 1
Type sealing ring 7 is sealed, and belongs to static seal, and O-ring seal is made up of elastomeric material；Set between the pump housing 4 and sealing gland 2
There are labyrinth seal structure 5 and asphalt felt 6, the labyrinth seal structure 5 is by the lower surface of the pump housing 4 and the upper surface of sealing gland 2
Corresponding 4 pairs of recess spaces composition, the asphalt felt 6 are filled in labyrinth seal structure 5, belong to dynamic sealing；It is described close
The top L-type projection 8 of sealed cover 2 is closely rotatably chimeric with the recess of the pump housing 4, and sealing gland 2 and L-type projection 8 are formed in one knot
Structure, the connection of sealing gland 2 and the pump housing 4 is enhanced, strengthen the stability of sealing.
Operation principle：This has the shaft seal structure of quiet dynamic double containment, is fixed on using sealing gland 2 by bolt 3
Axle 1, rotor part is collectively forming, while sealing gland 2 is sealed with axle 1 using O-ring seals 7, belongs to static seal；The pump housing
4 form stator component, and rotor part fills labyrinth seal structure 5 using asphalt felt 6 with stator component, belongs to dynamic sealing, close
The top L-type projection 8 of sealed cover 2 is closely rotatably chimeric with the recess of the pump housing 4, enhances the connection of sealing gland 2 and the pump housing 4, adds
The strong stability of sealing.
Claims (4)
- A kind of 1. shaft seal structure with quiet dynamic double containment, it is characterised in that：Including axle (1), sealing gland (2), bolt (3), the pump housing (4), labyrinth seal structure (5), asphalt felt (6), O-ring seal (7) and L-type are raised (8), it is characterised in that： The sealing gland (2) is fixed on axle (1) by bolt (3), and O-shaped sealing is used between sealing gland (2) and axle (1) Circle (7) is sealed, and O-ring seal (7) is arranged on sealing gland (2) lower surface recess, the pump housing (4) and sealing gland (2) it Between be provided with labyrinth seal structure (5) and asphalt felt (6)；The labyrinth seal structure (5) is set by the pump housing (4) lower surface Multiple recesses composition for setting of multiple recess and sealing gland (2) upper surfaces, the pump housing (4) lower surface is set multiple recessed Multiple recesses that portion and sealing gland (2) upper surface are set, which correspond, to be set, and the asphalt felt (6) is filled in labyrinth seal In structure (5), sealing gland (2) top L-type projection (8) and the pump housing (4) recess are closely rotatably chimeric.
- A kind of 2. shaft seal structure with quiet dynamic double containment according to claim 1, it is characterised in that：Labyrinth seal knot Structure (5) has 4 pairs of recess spaces.
- A kind of 3. shaft seal structure with quiet dynamic double containment according to claim 1, it is characterised in that：O-ring seal (7) It is made up of elastomeric material.
- A kind of 4. shaft seal structure with quiet dynamic double containment according to claim 1, it is characterised in that：The sealing gland (2) it is formed in one structure with L-type raised (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720523683.8U CN206786003U (en) | 2017-05-10 | 2017-05-10 | A kind of shaft seal structure with quiet dynamic double containment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720523683.8U CN206786003U (en) | 2017-05-10 | 2017-05-10 | A kind of shaft seal structure with quiet dynamic double containment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206786003U true CN206786003U (en) | 2017-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720523683.8U Active CN206786003U (en) | 2017-05-10 | 2017-05-10 | A kind of shaft seal structure with quiet dynamic double containment |
Country Status (1)
| Country | Link |
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| CN (1) | CN206786003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797079A (en) * | 2021-01-29 | 2021-05-14 | 长沙鑫航机轮刹车有限公司 | Oil deflector ring in airplane wheel and oil deflector ring assembly thereof |
-
2017
- 2017-05-10 CN CN201720523683.8U patent/CN206786003U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797079A (en) * | 2021-01-29 | 2021-05-14 | 长沙鑫航机轮刹车有限公司 | Oil deflector ring in airplane wheel and oil deflector ring assembly thereof |
| CN112797079B (en) * | 2021-01-29 | 2022-06-07 | 长沙鑫航机轮刹车有限公司 | Oil deflector ring in airplane wheel and oil deflector ring assembly thereof |
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