CN102072192A - Centrifugal fan shaft seal structure - Google Patents
Centrifugal fan shaft seal structure Download PDFInfo
- Publication number
- CN102072192A CN102072192A CN 201010550135 CN201010550135A CN102072192A CN 102072192 A CN102072192 A CN 102072192A CN 201010550135 CN201010550135 CN 201010550135 CN 201010550135 A CN201010550135 A CN 201010550135A CN 102072192 A CN102072192 A CN 102072192A
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- CN
- China
- Prior art keywords
- main shaft
- casing
- gas
- polytetrafluoroethylene ring
- seal structure
- 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.)
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Abstract
The invention discloses a centrifugal fan shaft seal structure which comprises a casing and a main shaft penetrating the casing, a master disk and a pressure disk are arranged in the casing; a graphite packing and a polytetrafluoroethylene ring are arranged between the pressure disk and the main shaft; a gas-guide hole is arranged on the polytetrafluoroethylene ring; a gas-guide pipe is arranged on the pressure disk; and a gas-guide pipe is communicated with the gas-guide hole of the polytetrafluoroethylene ring in the pressure disk. Compared with the prior art, the invention has the advantages that a seal mode of combining the graphite packing and the polytetrafluoroethylene ring is adopted, and high pressure air is increased, thus the leakage is prevented effectively, and the fan shaft seal structure can be cooled.
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 (1)
1. centrifugal blower axle sealing structure, the main shaft that comprises casing and pass described casing, in described casing, be provided with master and platen, between described platen and main shaft, be provided with graphite packing and polytetrafluoroethylene ring, on described polytetrafluoroethylene ring, offer gas port, described platen is provided with air pipe, and this air pipe is communicated with the gas port of the polytetrafluoroethylene ring of platen inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010550135 CN102072192A (en) | 2010-11-19 | 2010-11-19 | Centrifugal fan shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010550135 CN102072192A (en) | 2010-11-19 | 2010-11-19 | Centrifugal fan shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102072192A true CN102072192A (en) | 2011-05-25 |
Family
ID=44030877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010550135 Pending CN102072192A (en) | 2010-11-19 | 2010-11-19 | Centrifugal fan shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102072192A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58122398A (en) * | 1982-01-13 | 1983-07-21 | Ryonichi Kk | Seal device of pump shaft |
| CN2198426Y (en) * | 1994-07-15 | 1995-05-24 | 王春志 | Liquid closing water pump shaft seal device |
| CN1119037A (en) * | 1993-03-12 | 1996-03-20 | 沃尔曼国际有限公司 | Uniform compression gland seal assembly |
| CN101004184A (en) * | 2006-01-22 | 2007-07-25 | 石建平 | Sealing arrangement of blower fan |
| CN201851393U (en) * | 2010-11-19 | 2011-06-01 | 苏州顶裕节能设备有限公司 | Shaft sealing structure of centrifugal fan |
-
2010
- 2010-11-19 CN CN 201010550135 patent/CN102072192A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58122398A (en) * | 1982-01-13 | 1983-07-21 | Ryonichi Kk | Seal device of pump shaft |
| CN1119037A (en) * | 1993-03-12 | 1996-03-20 | 沃尔曼国际有限公司 | Uniform compression gland seal assembly |
| CN2198426Y (en) * | 1994-07-15 | 1995-05-24 | 王春志 | Liquid closing water pump shaft seal device |
| CN101004184A (en) * | 2006-01-22 | 2007-07-25 | 石建平 | Sealing arrangement of blower fan |
| CN201851393U (en) * | 2010-11-19 | 2011-06-01 | 苏州顶裕节能设备有限公司 | Shaft sealing structure of 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |