CN102072191A - Sealing structure of shaft of fan - Google Patents
Sealing structure of shaft of fan Download PDFInfo
- Publication number
- CN102072191A CN102072191A CN 201010550131 CN201010550131A CN102072191A CN 102072191 A CN102072191 A CN 102072191A CN 201010550131 CN201010550131 CN 201010550131 CN 201010550131 A CN201010550131 A CN 201010550131A CN 102072191 A CN102072191 A CN 102072191A
- Authority
- CN
- China
- Prior art keywords
- casing
- main shaft
- fan
- sealing ring
- blower fan
- 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.)
- Pending
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a sealing structure of a shaft of a fan, which comprises a casing and a main shaft of a fan, wherein the main shaft of the fan is arranged in the casing. The sealing structure of the shaft of the fan is characterized in that a sealing ring is arranged on the main shaft of the fan, the cross-sectional shape of the sealing ring is a V shape, an opening is also outward, one edge of the V-shaped sealing ring is in close contact with the casing, and a clearance is remained between the upper end face of the other edge of the V-shaped sealing ring and the casing. Compared with the prior art, the V-shaped sealing ring is arranged between the main shaft of the fan and the casing in the sealing structure of the shaft of the fan, which is disclosed by the invention, and the opening is also outward. Because one clearance is also remained between the upper end face of the V-shaped sealing ring and the casing, an air seal is formed between the inside and the outside of the sealing ring with the opening when the main shaft rotates at high speed, so that the sealing performance between the main shaft and the casing is obviously reinforced, and the phenomena of leakage and high-temperature agglomeration of a powder material are thoroughly prevented.
Description
Technical field
The present invention relates to the centrifugal blower technical field, specifically is a kind of axle sealing structure that is applied to centrifugal blower.
Background technique
Main shaft has a gap with enclosure wall after by casing, and general employing filler is wiped knot with the axle buffing and touched sealing, easily produces high temperature, and for carrying the molding powder machine blower fan, molding powder can bond at this, and shorten working life greatly.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned the deficiencies in the prior art, prevents that powder from leaking and the blower fan axle sealing structure of high temperature bond phenomenon and provide a kind of.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of blower fan axle sealing structure, comprise casing and be arranged on the interior blower fan main shaft of casing, it is characterized in that: described blower fan main shaft is provided with a seal ring, the sectional shape of sealing circle is that V-type and opening are outside, a limit of this V-shaped seal ring closely contacts with casing, leaves a gap between the another side upper-end surface of V-shaped seal ring and housing.
Offer a circular groove on described blower fan main shaft, described seal ring is arranged in this circular groove.
Compared with prior art, the present invention is provided with V-shaped seal ring between blower fan main shaft and housing, and opening is outside, because also leave a gap between the upper-end surface of V-shaped seal ring and the housing, so when the main shaft high speed rotating, between inside and outside the seal ring of opening, form a sealing gland, make that the sealability between main shaft and the housing significantly strengthens, prevent that thoroughly powder from leaking and the high temperature bond phenomenon.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein 1, housing, 2, blower fan main shaft, 3, seal ring, 4, the gap, 5, gas-tpe fitting.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated, as shown in Figure 1, a kind of blower fan axle sealing structure, comprise casing 1 and be arranged on blower fan main shaft 2 in the casing 1, on blower fan main shaft 2, offer a circular groove, in circular groove, be provided with a seal ring 3 that closely contacts with housing 1, the sectional shape of sealing circle 3 is that V-type and opening are outside, between the upper-end surface of V-shaped seal ring and housing, also leave a gap 4, also be provided with a gas-tpe fitting 5 in housing 1, this gas-tpe fitting 5 is communicated with main shaft 2.
Claims (2)
1. blower fan axle sealing structure, comprise casing and be arranged on the interior blower fan main shaft of casing, it is characterized in that: described blower fan main shaft is provided with a seal ring, the sectional shape of sealing circle is that V-type and opening are outside, a limit of this V-shaped seal ring closely contacts with casing, leaves a gap between the another side upper-end surface of V-shaped seal ring and housing.
2. blower fan axle sealing structure according to claim 1 is characterized in that: offer a circular groove on described blower fan main shaft, described seal ring is arranged in this circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010550131 CN102072191A (en) | 2010-11-19 | 2010-11-19 | Sealing structure of shaft of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010550131 CN102072191A (en) | 2010-11-19 | 2010-11-19 | Sealing structure of shaft of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102072191A true CN102072191A (en) | 2011-05-25 |
Family
ID=44030876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010550131 Pending CN102072191A (en) | 2010-11-19 | 2010-11-19 | Sealing structure of shaft of fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102072191A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362855A (en) * | 2012-04-05 | 2013-10-23 | 南通大通宝富风机有限公司 | Shaft seal of nuclear grade centrifugal fan |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1030589A (en) * | 1996-07-15 | 1998-02-03 | Mitsubishi Heavy Ind Ltd | Sewage pump shaft sealing device |
| CN2750088Y (en) * | 2004-10-29 | 2006-01-04 | 戴杰 | Pressure self-tightening type stoppage sealing device for pump |
| CN200984089Y (en) * | 2006-12-14 | 2007-12-05 | 山东九阳小家电有限公司 | vane pump shaft sealing device and the machine for making soya-bean milk thereof |
| CN201874876U (en) * | 2010-11-19 | 2011-06-22 | 苏州顶裕节能设备有限公司 | Sealing structure of fan shaft |
-
2010
- 2010-11-19 CN CN 201010550131 patent/CN102072191A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1030589A (en) * | 1996-07-15 | 1998-02-03 | Mitsubishi Heavy Ind Ltd | Sewage pump shaft sealing device |
| CN2750088Y (en) * | 2004-10-29 | 2006-01-04 | 戴杰 | Pressure self-tightening type stoppage sealing device for pump |
| CN200984089Y (en) * | 2006-12-14 | 2007-12-05 | 山东九阳小家电有限公司 | vane pump shaft sealing device and the machine for making soya-bean milk thereof |
| CN201874876U (en) * | 2010-11-19 | 2011-06-22 | 苏州顶裕节能设备有限公司 | Sealing structure of fan shaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362855A (en) * | 2012-04-05 | 2013-10-23 | 南通大通宝富风机有限公司 | Shaft seal of nuclear grade centrifugal fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110525 |