CN214425114U - Equipment shaft seal with sealing medium being particles - Google Patents
Equipment shaft seal with sealing medium being particles Download PDFInfo
- Publication number
- CN214425114U CN214425114U CN202023324512.3U CN202023324512U CN214425114U CN 214425114 U CN214425114 U CN 214425114U CN 202023324512 U CN202023324512 U CN 202023324512U CN 214425114 U CN214425114 U CN 214425114U
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- seal
- lip seal
- lip
- sealing
- double
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Abstract
The utility model discloses an equipment bearing seal of sealing medium for granule especially uses the equipment bearing seal of sealing medium for the granule. Comprises an end cover, a double-lip seal sealing ring and a labyrinth air seal; the inner side of the end cover is provided with a labyrinth air seal, and the outer side of the end cover is provided with a double-lip seal sealing ring; the double-lip seal sealing ring comprises a metal framework, a lip seal a and a lip seal b; the lip seal a and the lip seal b are connected with the metal framework; the lip seal a and the lip seal b comprise a straight part and a bent part for sealing. The utility model has the advantages that: the adoption of the inner labyrinth air seal and the outer double-lip seal combined seal avoids the inherent defects of poor wear resistance and short service life of the original shaft seal nonmetal seal, improves the service life and the sealing reliability of the shaft seal, and saves the cost of maintenance and spare parts.
Description
Technical Field
The utility model relates to a shaft seal combination, especially use equipment shaft seal that sealing medium is granule.
Background
In the prior art, the RV-3521B-1/2 rotary valve shaft seal type is a combination type of a nonmetal sealing ring and an air seal ring, the nonmetal sealing ring and the upper nonmetal sealing ring of the air seal ring are wear-resistant, poor in sealing performance and short in service life, and great troubles are brought to production and maintenance due to frequent seal leakage maintenance.
SUMMERY OF THE UTILITY MODEL
For the above-mentioned problem that solves prior art and exists, the application provides an equipment bearing seal of sealing medium for granule, adopts inboard labyrinth atmoseal and outside two lip seal combined seal to avoid former bearing seal nonmetal sealed wear resistance poor, the not enough shortcoming of the elder generation that life is short, improves bearing seal life and sealing reliability, practices thrift maintenance and spare part cost.
In order to achieve the purpose, the technical scheme of the application is as follows: an equipment shaft seal with particle sealing medium comprises an end cover, a double-lip seal sealing ring and a labyrinth air seal; the inner side of the end cover is provided with a labyrinth air seal, and the outer side of the end cover is provided with a double-lip seal sealing ring.
Furthermore, the double-lip seal sealing ring comprises a metal framework, a lip seal a and a lip seal b.
Furthermore, the lip seal a and the lip seal b are connected with the metal framework.
Further, the lip seal a and the lip seal b comprise a straight part and a bent part for sealing.
The utility model discloses owing to adopt above technical scheme, can gain following technological effect: simple structure, cost saving and reliable sealing.
Drawings
FIG. 1 is a schematic view of a shaft seal structure of an apparatus in which a sealing medium is a particle;
FIG. 2 is a schematic view of a double-lip seal ring;
the sequence numbers in the figures illustrate: 1. end cover, 2, double-lip seal sealing ring, 3, labyrinth air seal, 4, metal framework, 5, lip seals a and 6 and lip seal b.
Detailed Description
The invention will be described in further detail with reference to the following figures 1-2 and the specific embodiments: the present application is further described by taking this as an example.
Example 1
As shown in fig. 1-2, the present embodiment provides an apparatus shaft seal with a particle sealing medium, which includes an end cap 1, a double-lip seal ring 2, and a labyrinth air seal 3; a labyrinth air seal 3 is arranged on the inner side of the end cover 1, and a double-lip seal sealing ring 2 is arranged on the outer side of the end cover 1.
The double-lip seal ring 2 comprises a metal framework 4, a lip seal a5 and a lip seal b 6.
The lip seal a5 and the lip seal b6 are both connected with the metal framework 4.
The lip seal a5 and the lip seal b6 both comprise a straight part and a bent part for sealing.
A shaft seal combination is characterized in that gas is blocked by an outer double-lip seal sealing ring 2, particle media are prevented from leaking outwards through a circulation channel of a labyrinth gas seal 3, and the gas passes through the gas blocking media. Specifically, install maze atmoseal 3 in the former non-metallic seal ring of end cover 1 inboard, install two lip seal ring 2 in the former atmoseal position of end cover 1 outside, let gas access 3 and 2 between get into 1 inboardly after ventilating, the separation medium granule leaks outward.
The above, only for the utility model discloses create the concrete implementation way of preferred, nevertheless the utility model discloses the protection scope of creation is not limited to this, and any person skilled in this technical field is in the utility model discloses create the technical scope of disclosure, according to the utility model discloses the technical scheme of creation and utility model design equivalence replacement or change all should be covered in the protection scope of creation of the utility model.
Claims (4)
1. An equipment shaft seal with particle sealing media is characterized by comprising an end cover (1), a double-lip seal sealing ring (2) and a labyrinth air seal (3); the labyrinth air seal (3) is installed on the inner side of the end cover (1), and the double-lip seal sealing ring (2) is installed on the outer side of the end cover (1).
2. The apparatus shaft seal of claim 1 wherein the sealing medium is particulate, and wherein the double lip seal ring (2) comprises a metal frame (4) and lip seals a (5) and b (6).
3. The apparatus shaft seal of claim 2 wherein the sealing medium is particulate, and wherein the lip seal a (5) and the lip seal b (6) are both connected to the metal frame (4).
4. The apparatus shaft seal of claim 2 wherein said lip seal a (5) and said lip seal b (6) each comprise a straight portion and a bent portion for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023324512.3U CN214425114U (en) | 2020-12-31 | 2020-12-31 | Equipment shaft seal with sealing medium being particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023324512.3U CN214425114U (en) | 2020-12-31 | 2020-12-31 | Equipment shaft seal with sealing medium being particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214425114U true CN214425114U (en) | 2021-10-19 |
Family
ID=78054467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023324512.3U Active CN214425114U (en) | 2020-12-31 | 2020-12-31 | Equipment shaft seal with sealing medium being particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214425114U (en) |
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2020
- 2020-12-31 CN CN202023324512.3U patent/CN214425114U/en active Active
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